Gartner is getting more than its fair share of attention today for a controversial series of blog posts on Windows 8 from research director Gunnar Berger, who argues that the Windows 8 experience will be “bad” on a non-touch-enabled device.

I have one question. Why does anyone pay attention to Gartner, which has been trolling IT professionals for as long as I’ve been in the industry?

Just for grins, I went back and looked up some of Gartner’s more spectacularly confident and wrong-headed predictions. Here are some of their greatest hits. Er, I mean misses.