$43 on Amazon right now. Can you get a better set of phones for $43? I submit that you cannot.
I have become a sort of fanboy for Koss as a result of these headphones. I worked at Best Buy and finally got a set of these after trying a couple of pairs of Sennheiser headphones. (Not the really high level Sennheiser, though.) The Sennheisers just weren't very nice, in my ears. I returned them and finally got a set of the Koss Pro DJ100s. I was amazed.
After that, when people would come in looking for headphones, I would usually try to steer them toward Koss. They all wanted Beats and the vast majority couldn't be talked out of it. I felt bad that they were going to be paying $220 more for headphones that just aren't as rich-sounding.
Recently, my Pro DJ100s went belly up. I was going to order a set of the Tony Bennett signature headphones ($60 on Amazon) but then I found a set of Koss HV/1As on Craigslist for $40. I bought them and I love them. Saved $20, too.
Still miss the 100s, though.
By the way, when I was working at Best Buy, our employee price on headphones was "cost + 5%". What was the employee cost in dollars? ....$43.