Yamaha DJX PSR-61 - $140 (Los Angeles)

Yamaha DJX PSR-1D.
Will get your 90s party started.
Cosmetically - could be better as it had some scratches and marks and is missing a couple knob caps but nothing that will prevent you from having fun with it.
One key sticks out a bit further than the rest - I think that key probably broke and was fixed so now it works fine but just sticks out a bit.