I don't think the toys on the LE version are worth the extra price. I do not know how much the extra money is actually, but whatever it is it isn't worth it.
The left ramp is just a big ugly looking toy that "can" move sometimes, which doesn't excite me at all.
The right ramp mini playfield is pretty weak IMO.
The drop target is no fun and cranks the balls all sorts of places.
I don't know what else is extra....although I bleieve the LE has a metal guide over bumblebee to push the ball in a more coheirent way to the flippers when hitting Optimus Prime. So ytou've got that, and 2 extra "events" the pro doesn't have (mini playfield, starscream hurry up).
EDIT: Overall, I am becoming bored with the game (I do not own it though). There are basically 5 shots in the modes that you have to hit over and over. Then you have to hit 3-4 shots to start a mode. Then like 10 shots to complete a mode. So I'm bad at math...so average 13 shots a mode, 8 modes, over 120 shots to wizard mode. That's very light estimate as it does not include megatron/optimus multiball shots you have to hit to complete...which is at least 10 a piece?.
I understand having a hard game, that doesn't scare me, it just gets so tedious after awhile. I was really into this game and enjoying it a lot....but it wears you down & out at a certain point.
So (5.5?) grand? Man that's a hefty hefty price. I think you could get a ton more with that cash.