@Igrodi... Here's some tips from fellow European...
1) Forget buying outside EU-zone
It's simply too expensive because of postage costs and custom fees. Take into account that some European countries have low postage costs (Germany, Netherlands are exceptionally cheap - you can ton of stuff for 10£á of postage) and others have very expensive postage fees (for example a heavy parcel from Finland to Spain will easily cost 50-60£á). Most are somewhere in between.
2) When/if buying from Europe, simply forget Scott albums. They simply don't move much that often in Europe...
But there are plenty of alternatives if you know what to look around. German auctions have got plenty of Schaubek albums, The French auctions provide you with Yvert's the British auctions give you access to SG albums - all have got worldwide editions. And then there are dozens of lesser known "national" alternatives.
3) As for cost of buying full album vs smaller lots... It depends entirely upon the album and the condition and the contents. A quality clean Schaubek album or SG Imperial usually adds significantly to total cost as some people really just want the album (to carry on collecting etc). But if the spining has gone bad, pages are musty etc. then the album adds no extra cost (other than postage/weight).
4) As for where to buy... Seek stamp auction houses instead of
ebay etc.
ebay is usually "bottom of food chain" (though it provides some good buys from time to time). If you want to buy a lot & cheap, then you must target auction houses where a lot of eBayers buy their sales stock - Postiljonen, Sandafayre etc. major stamp auctions. The bigger lots you buy, the more affordable they become (if measuring price per kg).
-k-