I don't know about others, but most of my friends run 3+ yo computers and laptops based on Sandy Bridge.
This CPU architecture was so good, or maybe Intel stopped innovating in the absence of competition, so today, more than three years later, I have zero urge to upgrade my PC. The only updates that I've made are: I updated my GPU a year ago and installed NVIDIA Kepler. Also, initially I had just four gigs of RAM in 2x2GB configuration and now I have sixteen gigs in 4x4GB configuration. Everything else is from 2011.
I remember ten years ago, when you didn't update your computer at least once every two year, it became horribly outdated, slow and just unpleasant to use.