Baywatch is a hard game to get rid of - and you'll likely want to get rid of it after a few months. I'd only buy it if it were very cheap ($1100 or so). I don't know if it's any good or not I've never played it.
Simpsons is a fun game and you'll have NO trouble selling it when/if you decide to mix things up. Nothing wrong with it as a first game it's really cool and I've always liked it since the location days.
Buying a pin should be more about location and price than specific machine - if you get it for a decent price you can ALWAYS sell it for what you paid or more and get something else. Don't obsess over a specific title or pay too much, or put too much stock in the advice you get here, which will almost always be "spend more money, get a different game."
My advice is always if it's a good game at a good price in a good location, consider it.