If I remember correctly, there were several uberbears here who speculated that your place might bottom out somewheres around $225k – $250k. That hasn’t happened (yet) and it is still possible that it may not ever happen. So you should take some comfort in knowing that YOU probably arent looking at a 50% loss.
You spent a lot of effort soliciting and analyzing the information that was available at the time. If memory serves you had other considerations in there as well. No matter what, you knew what the potential downsides were and you made an informed decision. As I see it, your main job right now is to just live with your decision and be happy with it.
One sale doesn’t make a trend by itself so don’t read too much into it. I may be wrong but I think it’ll probably be a little while yet before typical pricing passes the -50% mark.