Quoted from Hoswvu:
Looking for a machine in the price range of 500 my kid decided he wanted to buy a pinball machine instead of a dirtbike after playing in a pinball tournament.
Someone on my local craigslist was looking specifically for a Raven in the $500 range. I wrote him back and told him to save a little more money and get a System 11, but if he really wanted a Raven he could buy mine.
It's not that $500 won't get a machine that's fun to play. I like playing my Raven, it can be pretty challenging and it has a helicopter. I just found that I got bored with it after too short a time. It's fun to go back to, but something like a Pinbot or High Speed will keep you interested longer and both can be found in players condition for $1k or so.
All that said, I have a very nice playing Raven you can have for like $550. It has new rubbers and rebuilt flippers