The first three collections I purchased on
ebay a few years ago I overpaid for drastically, mostly because of both deception by sellers and my unfamiliarity with the current market for collections, having been away from stamps for more than 30 years. All were in about the $250 to $300 range, and should have probably sold for half that, at most. But the descriptions were either bogus enough of vague enough to get buyers competing for them. Two were from regular stamp sellers, Roecy and Noble Spirit. One was from a casual seller. I've learned, and have picked up many good deals since.