Cool. Thats what my car looked like new
You are indeed right - $600 does suck for having the investment you put into it...however that is the going rate on the bay....possibly more since it is basically unused.
I might have rocks in my head - maybe you could get $800-$900 out of it with a "buy it now" price...who knows... but there are MBX 5's going for that.
It depends on who is looking at the time I suppose.
Best of luck. And best of luck w/ the baby... heck - maybe keep it for the kid to grow into??