sethnintendo on 01 October 2013
I'd say having the ability to transfer your eshop games over to the new system is a very big deal. I would be upset if I owned a PS3 or 360 and couldn't transfer those games over day 1. Sony will supposedly have a fix for this in future but I haven't heard anything since the deal with it or whatever comment by Microsoft.
Ability to play previous system games? Use it more often on hand helds but I have used it a decent amount with Wii/GC and Wii/Wii U. So it is a nice feature especially when you have a ton of good games from a previous system.
