With this upgrade offer, it is impossible not to think about upgrading, even though I am totally happy with my UI4 Vera2. 
However, one thing that I have not seen mentioned anywhere, is if the wifi coverage is as good (or indeed better) on the Vera 3?
The Vera 2 has pretty good coverage in my home, and I need it, with my transformer prime and phones. (I have 3 wifi routers all in all, already)