There's also plenty of people who use their laptop until it's dead. Infact, I'd argue it's probably more economical to purchase a repairable laptop and replace parts as needed.
Your advice boils down to just get richer and don't be poor.
but that hurts Intel too...their profit margins are in their high-end CPUs
people keep talking about the cost of Macs but they're cheaper than most Windows laptops...
go look at the HP, Lenovo sites...they're not steering people toward $400 laptops
Of course companies push the items with the highest margins. They want to make money after all, but they still have plenty of options in the sub 600 category that will last 5+ years under normal use without issue. There's obviously a market for low priced laptops, otherwise so many companies wouldn't build them. And it doesn't hurt Intel. If the choice for them is to sell a low margin CPU or none at all, they're gonna sell the low margin CPU.