My last iMac lasted 10-years. I replaced it with the M3 iMac for my daughter. I will be happy if it takes her through High School graduation in 2030. If the M3 iMac is still running, I expect to use it for some intro to computer stuff for one of the younger kids.

Yes I cannot mine the iMac for parts at EOL, but realistically, I haven't really done that on any tower-based PC either.