Being that the game has one graphic for every bat, glove, etc that you can purchase, it seems like there is a cap on the amount of items in the game, based on the amount of graphics.
However, I'd be much happier if the designers were able to re-use the graphic files to make additional items. I don't care quite as much about what the bat looks like (although I do appreciate the effort to make sure the game isn't totally generic in that aspect) as much as having a wide variety that I can choose from.
I, for one, would be happy to see 165 bats instead of 55, even if each graphic would be reused several times.
What about a Mario Mendoza Special bat that reduces your power, but adds to defense?
But I think it would be best to assure that your character doesn't have to become a multi-millionaire before he can afford some good lumber or a good glove.