I have my Robocop at a local pinball club with about 30 other games- it's steadily been the second most played game there behind Hobbit LE and ahead of games such as Metallica, and Stern Kiss. The game is simple, but challenging and has one of the best spinner shots ever. Regarding it being rare, i wouldn't say rare, but certainly not a lot of them out there.

Where did you find the ramp? Mayfair?

while there might be a tiny bit of resemblance to T2 the game play is NOTHING like it at all. Don't let that hold you back from buying one. On the other hand if you don't want two Cyborg themed pins i can fully understand it. T2 and Robocop are both excellent pins for different reasons.