Give it a little more time and tablets (portable devices) will replace the Desktop. If you do have a Desktop, it will be one of those "Smart Desktops".
I see an older generation in this discussion. Let's get the 10 to 25 year old crowd on board and see what they have to say. :) Yes, I said "10". I'd guess there are folks younger than that using tablets who may also have some purchasing power. Heh!
It's the next generation of computing.