My most valuable garage sale find was a 30-gallon plastic lidded bin full to the top with great classical CDs. The stuff came from church members and all of these top-shelf recordings (DGG, Angel, Telarc, etc.) added up to 300+ discs from an estate of someone who must have been an academic in music. I was poking around the top of the box, debating if I wanted to dig through it - there were excellent discs on top. I made the decision to jump when the woman who was running the sale approached and said "They're ALL classical, I'll never sell them. Give me $20 for the bin and they're yours." I've enjoyed them, none of them went to eBay (which my family predicted when they saw them). I could never afford thousands of dollars for these high-end issued discs, so I kept them to enjoy!