It's tough to find a 20-25 year old pinball machine that is clean and in good order. Parts are reproduced for most popular machines - at least Bally/Williams games. Data East games are not as popular/collectible so finding parts may be an issue. If you want a clean, perfect machine that stays clean and least chance of issues, then a new Stern is what you want. They do play different (have different feel) so it's best to play as many pins as you can to see which ones jump out at you. Youtube videos and virtual pins like Pinball Arcade are good for getting an idea of what a pin is like but no substitute for playing the real thing. Ignore the rankings and other opinions about whether a game is fun. Every pin has a fans and haters.