Has anybody considered these factors:
1) Most computers purchased within the last five years can still perform admirably today.
New computers are noticeably better, but for the large swath of consumers who are turning to phones and tablets for all their casual computing, the necessity of regularly buying a new computer has become less pronounced. For those who sit in front of a home PC just a handful of times a week, they are probably fine extending the life of a slightly creaky machine.
2) Even if Windows 8 were the most well-received and critically acclaimed operating system ever, PC sales would probably still slump.
Why? Tablets.
And, maybe “Cloud” work too?
Right on for my Macs. I have two G4 mirror door that work great. My main unit is a 2x2.66 Dual-core Intel Xeon with snow Leopard and works great. Haven't seen any need for more bells and whistles so why bother. Using two externals 1T and 500G with three internal 500G.