Since the days of the original IBM PC, I have regularly renewed desktops every 3 years or so until recently. The current desktop and laptop have made it past 5 years and I see no reason to upgrade as long as they still function. The desktop has had a couple of HDDs added, but is otherwise unchanged, the laptop battery isn't capable of more than about an hour of usage, but it's very rare that I need mobile access that can't be catered for by a lower powered device.
Show me a compelling reason to upgrade similar to the step from a 386 to a 486 CPU and I'll consider a new machine soon. Otherwise, barring a major failure the current setup will be maintained for at least a couple more years.
Biting the hand that feeds IT
