I've been a member for this forum for only a couple days and I'm already addicted

There are soooo many keyboards that I want to try but the Realforce Topre's sound best suited for me. I just had a quick question before taking the plunge...
Besides the obvious full size keyboard vs. tenkeyless, are there any other major differences between these two models? I know the 87U has blue LED lights for the Caps/Ctrl key and is a limited edition model, but are the inherent designs/switches the same for both models? Does the 103UB come with the purple WASD and red ESC keys?
I'm just trying to decide if I should wait for the 87Us to come back in stock or just get the 103UB. I'm OK with/without the numpad on the keyboard, although I do think without looks a bit more sleek/clean

Thanks for this wonderful forum/resource by the way, hopefully this won't be my first and last keyboard...