I can completely understand the way you feel. Win 8 is absolutely awesome for touch screens, but the Metro part isn't navigational joy with a keyboard and mouse. Nor is Metro particularly suited to the office-- it's much more of a personal and home experience. Thankfully, the "normal" Windows 7 experience (minus Start Menu) is a just a press of the Windows key away.
I think touchscreen computer buyers will love Windows 8, but I don't see a lot of folks with traditional (non-touch) hardware upgrading. I suspect that eventually most all Windows PCs will have touch screens, and that's when and where Windows 8 will see widespread adoption.