Feedback is not an iron-clad guarentee *but* I was interested in some super minty looking chips on Yahoo! and checked the sellers feedback. Found about four negatives, three concerning Pokemon cards sets that weren't as pictured in the auction page. Well, wouldn't that lead you to believe that this person wasn't primarily a chip collector (Gorsky! Say it ain't true!)and doesn't care about her rep to chippers... and that the great chip pictured might not be close to what you may bid $20-$40 on? The most telling part of the feedback was the sellers response. She was a first-class fliberty-jibert whose conceit put her concerns above anyone elses ("Sorry I was late, I'm only human."). After the artic, frigid bidding on Yahoo!, I've detected her under another nick on eBay with a not-quite-so-spotty feedback record. Those of you who don't deign to check feedback on your bidding should remember this Vegas saying:

"Suckers shouldn't have money anyway..."