Yeah, sorry.
The only other difference between the arcade and pro is the Composite vs Hybrid Component/Composite cable, but it makes more sense to buy a 5 dollar HDMI cable anyway. It's a better deal to buy an arcade with a live starter pack because you get the 3 mos live card. The Pro/Elite simply isn't worth it.
edit - I should have mentioned the games they include. I assumed the OP doesn't care about those







