I think these games from JJP appeal more to the casual player, so I wouldn't worry about trying to draw in that guy that will go out of his way to play a pinball machine. Either game will work in getting play from the casual player. In fact, I hope to place Hobbit right next to WOZ and see just which one has the most staying power. WOZ is a great earning pin, though IME it does take more maintenance than a newer Stern these days.
Unless the location owner is a pinball guy, most people won't care one way or the other if you bring in a Hobbit or a WOZ just so long as it remains in good condition, doesn't create problems for the location, and earns its keep.