It'd be nice to find one less than retail of $200.
I have a Focusrite Scarlett 2i2 I'm planning to list for sale any day on Craigslist or Ebay, in great condition, all original paperwork and stuff. About a year and a half old, but in mint condition, only used at my home studio. I'm trying to learn Pro Tools through M-Audio interface, so don't need the Scarlett (which I had been using with Reaper -- works perfect with it). I think I paid like $225 for it new, plus tax, would probably list it for $150, but have not yet researched the "going rate" for these used.