Well, I grabbed a pair of sony mh1 for $20. Oh my goodness. I think I found a replacement for my pfe112. They are surprisingly similar to the pfe112 but they sound like they have less distortion or something. A little more sub bass, which isn't bad. They are actually a lot better than I expected. For the price I'd have to put them pretty high in terms of value. I'll have to listen to them more before any real review or anything, but this might be my all around set while the er4s is my critical at home set.
I didn't like the MH1 when I owned it. The mids and treble was good. But the bass was a complete mess. The sub-bass was extremely emphasized, very muddy, and distorted.