They can have the smart hub back (go ahead and remove it from my TV) and give me $200 if it's that great.
Seriously, the apps are junk on these Smart TVs. The only usable/worthwhile ones are the Netflix, Amazon Prime, Hudu, HBO GO and Crackle type apps. And those are already available on xboxs, DVD players, Apple TVs/Roku's etc. The rest are garbage.
Not counting computers, tablets or phones, I've got 4 devices in my entertainment center that work with Netflix (and I don't have a subscription because the content just doesn't interest me).
If the point of the Evolution Kit is to allow the Smart Hub to be faster, then it's a waste IMO. Who needs to ignore the smart hub faster than it can already be ignored.
For $500 a person could get an iPad or whatever Android tablet is popular at the time and get a real second screen solution.
I don't need my TV to 'discover' stuff for me to watch.
Maybe I'll wait until they do the last upgrade in 5 years and buy it then. But yearly? Not convinced, yet.