Best deals you got on a pair of headphones

Probably a stupid topic, but interesting enough. I'm sure there was a set of cans you found that are normally off your price range, but you found a good-ass deal on them Whether new or used, what is the best deal you got on a set of headphones you ever purchased?

For me was the Audio-Technica ATH-M50s. I was going with my grandmother in finding a cheap lawn mower, but they were pretty much ripping my grandma off in her eyes, and we went to a few pawn shops. One we went to didn't have lawn mowers, but the moment you walk in the door, you'll see a shelf full of iPods and headphones, and there were the M50s for $59.99 used. I had to buy, I couldn't pass that up, and I can admit these blow my Skullcandy Heshes to Kingdom Come.

I went garage sailing about a year and a half ago. Nothing was really sticking out to me, but the place was packed so I kept looking. Right before we left, I turned over a stack of books and found a headphones case that said Bose on the front of it.  I opened it and couldn't believe my eyes. A set of Bose Quite Comfort 2 Headphones just sitting there looking as though they were used twice. I go up to the lady expecting to be shot down with a $150 price tag. They were obviously her husbands and she had no idea because she gave them to me for $20! I shat rainbows for a week straight.