If you're not interested in games Apple TV 3 is still good for you. Sure you miss the Siri search, but it isn't a compelling reason to upgrade
So, in other words, the Apple TV 4 is really only bringing into play a host of features that have little to do with watching TV? Perhaps Apple need to change the name to something like The Pippin 2, that way it might be clearer that this is a hybrid games console based on iOS, that has TV features as a secondary concern.