I have a Tron Pro (Not for sale, sorry), and my 2 cents is... I wish I had an LE. I don't think the difference between the two is worth the price gap, but there is no world in which the Pro is better than the LE.
I personally think Eli's Ramp kit LOOKS better than the LE's ramp lights. I love the translight on my Pro...
But I WISH I had DP Multiball. When I settled on the Pro, I thought I'd likely never see DP Multiball, so it was a non issue. However, once you understand the rules, Portal is quite attainable, and the times I've made it there, I wished there was more to do.
So, In the end, if money doesn't matter LE > Pro for sure, However price-wise... Tron LE= Tron Pro + Congo + Jungle Queen. I know the math I went for!