IMO, the hobbit was a gamble. All those pop-up mechs make the game more Whack-A-demon than pinball. I enjoyed playing it at the SFGE but I suspected the novelty of the pop-ups may wear thin, and then you're left with some stuff to do out at the edges of the field.
In the couple dozen games I put on it I grew less and less interested in whacking orcs. That's the gamble with a genuine novel idea in design...when the novelty wears off there better be something left to keep the player captivated, or it's gonna sink.