My wife and I used to buy and sell 1960's furniture and stuff - lamps, art accessories, etc. I now have a houseful that I basically paid $0 for. We don't do it anymore because it got harder to find (original owners had mostly died off) and lots of other people started doing it - in fact, prices went so high that we decided to sell most of our "extra" stuff at a monstrous profit. Best pull - I bought an entire set (huuuuge set) of Franciscan Starburst, including some rare pieces, for about a dollar each. We completed our set and sold the rest for a 300% profit.

Good times.