I don't think you're right. I think the geeks you describe like new things, and are passionate about the things they like. Some of these new things become 'the next big thing' but a lot of them don't.
The Internet fatigue Chris talks about, I see it all around me, and more and more articles are popping up about Internet addictions. Plus I suspect the new Facebook redesign will suck people in even more. So in this case, I think he's definitely got a good point.