I got a complete original 1988 Trek 520 for $100 about 4 years ago in Atlanta. It's a beautiful Reynolds 531 model w/downtube shifters. Easily worth 3x the price except for one problem. The seat post was stuck hard. I had to put the seat post in a big vise and, I put so much force on it I almost broke the frame. But, the stem snapped free. I've still got it. Converted to an upright city bike with trigger shifters on handlebars. A super sweet ride. Wouldn't take less than around $400 for it now.