An ebay seller is selling a pair of broken DT770 Pro80s. The bid is up to $61, but I doubt it'll go any higher than $70. All it needs is a new cable, or a shorter version of the cable that's on there (resoldering where the break is at). I'm thinkin about buying them, fixing them, and selling them to anyone who's interested.
Edited by Trae - 11/15/13 at 8:20am