As an IT technician, I make a living off PC's breaking down often with no discernible cause. Eventually the hardware or software just fails. Not to mention viruses, driver problems, incompatible software, a nearly weekly need for updates just to keep the systems secure and running, not to mention daily updates to antivirus software.
And lets not forget the massive cost of building and maintaining an up to date gaming PC.
My wallet greatly appreciates the PC community.