I've not been a big "album buyer" but I did buy a US Album at the APS show in Little Rock for $75. The album itself is in poor-fair condition, but the stamps within filled some early gaps in my collection - and in a couple of instances it filled a couple of somewhat expensive holes (ID verified) in my collection. Frankly I was surprised at a couple of things left in the album by the dealers and have to assume they didn't pick over it.
I also purchased, again at a show, two Minkus Global Supreme albums for $90. Pretty loaded with stamps -the Germany is surprisingly nice. I'm debating now on whether or not to use it as the foundation for a half-hearted attempt at a worldwide collection, or to just sell it off and see if I can make a few bucks.
I've never bought an album collection off
ebay, though I seem to look at quite a few of them there. The ones mentioned above are the only two I've purchased at shows. But I love looking at old albums.