Some people (usually bally/wms guys) rubbish GTB 90's pins. I been told by 3 operators that GTBs were the most reliable machines. Not so many good players put out by GTB though in the 90's. Data East great pins also, same deal not so many good games. WMS/Bally just had the majority of better playing games. Buy the games you enjoy, dont buy cookie-cutters because some in my opinion are over-rated/priced duds.