After a few months of vim use, I did part of the vim tutorial using both vim and a click-and-type editor (gedit) and timed myself. Gedit was significantly faster. Can't say I understand you vim fanatics.
If you say why Gedit was faster perhaps us vim fanatics can help you understand us.
This paradox is one of the big reasons why I don't use Vi or EMACS - I think that the productivity gains are nowhere near as great as users make out, but the sense of mastery over such arcane tools is inherently satisfying to the kind of person that spends a lot of time in a text editor.