I think theres little benefit of a desktop above a laptop nowadays. You get 90% of the performance & feature requirement a desktop could provide and then some - wireless remote, built-in media card readers, wi-fi internet access, fingerprint readers, the
list goes on.
My reasons for sticking with desktops has always been a) being able to upgrade my PC's components without spending and arm and leg, and b) games. While the former will probably never change for laptops, I was able to play Max Payne 2 flawlessly on my girlfriend's
laptop that has a meassely intel integrated graphics chip.
All that AND I get to take the thing anywhere I want to. I'd say desktops may soon have to start counting their days.