Using my PC has always been like traversing a tangled jungle of incompatibilities and minor tribulations. I always get it to do what I want, but sometimes it takes some doing. My console, despite its apparent conscious desire to break, is still in some ways a much more reliable machine. Day to day, it does what I ask when I ask.
The gap is closing, sure, but you still need a catapult and bicycle helmet to cross it.
EDIT: Also, I don't think the point that PCs are reliable because they can be maintained with a technology degree and constant maintenance is a strong one.