If you're not an internet person, don't buy it.
Whether you like it or not, a lot of software is moving to Cloud based infrastructures. More and more "regular apps" are being ported to the browser, even your regular 3D FPShooter (OnLive is just the first example, but others will follow). You really don't have to use Google applications if you don't like them. There's plenty of alternatives.
I'd buy one if I had the money.