I have a slightly used Koss KSC50 for $8 shipped. It's in like new conditon. I just bought it on a whim, but have enough budget phones, so this got very little use.
I also have a pair of Sony EX70SL (short length) headphones. This has a short length cord, plus extension cable. It's also meant to be worn so that the cord dnagles down the left side. I made some common mods to it (tape/glue mod, foam mod), that I think have cleaned up the bass and treble. Heck, you can even try out the EQ mod and see if these can really sound close to Etys
These go new for around $45 + shipping. Asking $25 shipped obo for it. These are great. Selling because I need the EX70LP version for working out at the gym (the SL + extension bounces around too much when I jog, and the SL alone is too short)!
Finally, I have a pair of Sennheiser MX400s that are slightly used. I bought these thinking they'd replace my EX70s for running, but I prefer the EX70s. Asking $15 shipped obo. They go for $20 + shipping on Headroom.