Having played both and not having that much income to spare on pinball I would take the PRO. If I had the money to spare I would buy a PREM. My only wish would be that the Pro would have a spinner and the woodbury drop target. Apart form that I could live without the rest. The crossbow does slow down the play but I'm not going to put that as a negative as it adds another level to the play. The well walker magnet add randomness to the ball. Bicycle girl was somewhat of a hit / miss for me, drop targets on the left are fun but not drastically different than standups.
the diffirences between both are (list is what PREM as that Pro doesn't) I might be forgetting some
- different light show
- left ramp is different and harder to make on the Premium due to it's incline to accommodate ... next point
- the bicycle girl head
- the crossbow
- the well walker magnet
- the well walker guts
- the woodbury drop target on the right
- the drop bank targets on the left, Pro has stand ups
- the spinner
- the fish tank
My .02 cents