Computer repair has changed. It's less about the repair of the actual PC/OS (sometimes it is though), It's more about recovering the data. People will pay to get their children's baby pictures back, even if it is to migrate everything to a new computer. Then you still have to make sure no viruses are coming along with that. Wages have gone down, but I'm still successfully charging a premium for my services. There will always business helping lazy or ignorant people that don't do backups (I mean ethical business).
The geek squad format and reinstall model is what's dead (but it's not). It never should have been accepted in the first place though.
I.e. the data is what pays now, not the machine.