My experience in the industry, [over forty years working in the UK IT sector], would suggest that, although a tiny proportion of enthusiast computer users, mostly, `either "too rich or too driven to have the latest and greatest setups" will dump IT equipment, the vast majority of the Enthusiast sector will continually recycle and rebuild their systems
As for other users, businesses', education, etc, will update only when the have to and probably later than this, and will these days be mandated to recycle and reuse.
he majority of private consumers will use their laptop until it falls apart or is "left at the coffee shop" and even then most will be recycled by giving them away to family (elderly or very young)
There is a major campaign at present by one of the major high street white goods stores offering Good money off for returning your old laptop when buying a new one.
We are no longer living in the throwaway society like the one I lived through in the 1960's and 70's we still have a way to go, but we are moving in the right direction
