You've absolutely correct about page size. Larger pages do make the presentation more open and less cramped -- obviously. They let the stamps "breathe" more as the extra spacing and margins do to stamps what a matte does to a framed picture, giving them more elegance. And they allow for adding information about the stamps in a less cluttered way. Older albums nearly always used larger pages for these reasons. Classic collections of prominent collectors were nearly always on large pages. They just looked "right". I have a set of older Yvert & Tellier albums with some old European collections mounted on very large size pages. They are gorgeous. They don't fit on my book helves, though, they're very heavy, and it's very hard to get new pages for them. But I do admire their quality. Finding a compromise between cheap and thrifty pages and large and expensive (and hard to find) pages shouldn't be hard, though. There are lots of good album pages still being made. They just aren't going to be the size of printer paper.
Schaubek, Lighthouse, Davo, even Scott use larger pages in the 10 x 11" range of sizes.
The current boom in 8.5 x 11" pages is a product of computer printers and cheap print-yourself pages. The rationale for use of these pages comes from their inexpensiveness and ease of use, not the other way around. At no point did someone say, "We ought to make album pages smaller so they can fit into ordinary cheap three-ring binders to make our collections look better." That never happened. We justify what we are using, but what we use is often the result of economic and practical factors. Lots of people defend wearing sturdy shoes and inexpensive cars. But I imagine they wouldn't mind wearing beautiful shoes and driving an elegant car -- if they could. Since our stamp collection may be the one area of our lives where we can actually own something elegant and impressive, why not do it the best way you can?
The availability of cheap print-yourself album pages such as from Bill Steiner's remarkable website also made making your own stamp albums possible. Printing Steiner's page layouts on larger album-sized paper can also be done -- producing a less-cluttered look. But most collectors print using their home printers which limits them to album pages the size of printer paper.
There are Romania album pages available from Bill Steiner's print-your-own page website. Also available on his CD.
http://www.stampalbums.comAnd they're available to be printed for you on larger-sized paper -- as long as it's Minkus or Scott album sized paper. The result looks very good, but not quite as good as printed pages from album makers. Still, they are good enough to use.
http://www.albumpages.netAs for standard three-ring binders, many collectors use them ought of economic necessity. To me, they are not sturdy enough for the long haul. And too often they look cheap, like the school binders they actually are. So companies like Lighthouse and Prinz and even Scott (Amos Advantage) now provide better quality 3-ring binders. Scott sell a sturdy three-ring binder with a slipcase. It's the 8.5 x 11" size. I've used these for Vario pages. Prinz sells their own version for 22-ring pages. I own a 22-hole punch so I punch Vario pages to fit these binders and end up with an improved and better looking stock book. I don't use either binder as an album, though. More rings means a sturdier hold on the pages, makes the pages turn more easily, and to me they just look better. So I prefer the 22-ring page to the 3-ring page. Three ring binders are probably the most damaging of all to album pages due to the wear and tear of the rings against the paper pages - plus the damage done by the "join" in the rings which actually rips the holes if not exactly precise. And they're almost never exactly precise.
More rings, in my experience, do less damage.
Most companies also sell larger-sized album binders with various combinations of rings and posts.. The one shown above from LH (the Vario G) with the very large rectangular rings is used by some collectors. I tried it and as a stamp album I found it awful. Why? The large rectangular rings make the simple act of turning a page laborious. Up, over, and down every time I want to turn the page is not pleasant. I think these large ring binders were actually designed to store pages rather than as actual stamp albums. And they do hold a lot of pages. I might use them to store duplicates, any application where I'm not going to have to turn the pages much.
LH also makes three-ring binders which are very nice, also in the American 8.5 x 11" size. These are Vario F binders, they're padded, and good quality with some caveats. The rings have to be opened by yanking on the rings themselves. They don't use a lever. That's awkward and a bit cheap. The rings are mounted to the inside of the spine. Mounting on the back cover is preferable, I think, as you'll see when you open up your album pages. And the rings are round when squared off rings hold more pages and seem to work better. So, all-in-all, a good binder with limitations. But they're for 8.5 x 11 inch pages, the small size. Not my favorite, as I've said, though they are popular with many.
If you want non 3-ring binders in a larger size that's more like classic albums, you need to look at 2-post, springback, or multi-ring binders from the major album manufacturers like Lighhouse, Schaubek, Scott, and Lindner. Maybe some others, too.
My favorite blank pages are the large-size Schaubek pages which require using their album. Or the Lighthouse blank pages. Schaubek's blank pages are much less expensive that LH. Scott blank pages are high quality, but not as inexpensive as Schaubek's. Scott binders come mainly in the 3-ring format to suit American tastes (unfortunately because of the damage they cause to pages) but they also sell one remaining size of their older 2-post binders. I like this better.
If I were you, I'd choose among samples of the major manufacturer's binders and pages to decide which you like best.
Lighthouse and Davo and maybe Schuabek also sell Romania album pages, but get ready for sticker shock. These pages are very expensive. I don't think Scott makes Romania pages anymore. But you could look for a used Scott Romania album and supplement those pages with Steiner pages or blank pages.
Good luck!