Herg: Great thread you started. Although there is many different things to like about pinball, I agree that sharing it w/ others is probably the best.
Fixing/playing/cleaning pinball machines is also high on the "best thing about pinball" list.
Having your friend's wife warm up to pinball is definitely a good thing for both you & your friend.
Ladies that are into pinball are usually pretty cool people (imho).
Monster Bash is a great machine.
JWS64: Good post about pinball machines / time machines.
Further to that, Check out this pinball machine: Time Machine, Data East 1988.
Another "Time Machine" was by Zaccaria 1983.