Depends what you like. I didn't really enjoy it at first but after playing it more it moved up for me and I think it is an enjoyable System 11 game. I'd say it isn't a great competitive game overall, but it does a decent job of encouraging you to shoot several things. Definitely need a well working Mixmaster toy to fully enjoy the game.
It's available on The Pinball Arcade video game if you're curious about learning the rules and trying it out. I've never owned it (we had one on location for a while so I've played it a number of times), and while I think it's fun it is not a game I've ever really wanted in my home.
Someone else can likely give better advice on pricing. I imagine sub $1500 would be seen as a decent/good deal for a buyer at this stage. I'd not go over that amount for this pin, personally (I think the average sale price here is $1700). I think there are too many better options at around the $2k mark to really want to spend such money on a Dr. Dude.