I tend to doubt the doom and gloom on the PC front. It's just that the computer sales and increases was a bubble based on a premise that has changed... their extraordinary sales numbers and increases were based on the consumer getting into the platform. And as such, they revved up production scales, driving many of the mom and pop stores that were the basis of the PC market. The uninformed consumer has moved on to tablets and smartphones now, so the market isn't flush. If the Dells and such move on, then the small mom and pops will come back.
I speak from experience as I did that at one point, and it became hard to compete with mass produced dells and hps. The desktop PC might be changing, but I tend to doubt that it's going anywhere in the near future, no matter what the corporates' bottom numbers might tell you. Their sky is falling, but the sky isn't.