A fully working world series is worth 2.5x the asking price according to the price guide. I've never sold a pitch and bat, but I would assume the buyer's market is smaller than normal pinball. If you've been looking for one, I think this one is a good title at a fair price (assuming nothing major is missing).
Edit: it also appears to have the reproduction backglass. I'm also wondering about the box on top, is it a topper?!