I once bought a box lot with about 25 avon bottles in them for a couple of dollars. Not being a collector of them and finding they do indeed stink I put them out in a garage sale over the summer in the same box lot for something around $10.00 just to get rid of them. I quickly found that people didn't want them all but were rather willing to pay a $1.00 apiece, and they were collector's of certain items just as cyberdan said, a hammer botttle is one that comes to mind. People seemed to be looking more for bottles that were sealed with the perfume still in them, I believe they hold more value than unsealed or empty bottles.