Intel offers certain models with extended availability & support. In some cases, this extends up to 10 years. For PCs that are integrated into other devices, appliances, machinery, etc. it's very important to have that kind of availability & support from your parts supplier, so that you're not continually having to re-design, re-test, and so that field service techs can still replace individual parts instead of having to do a full swap.At least AMD recognizes that not everyone needs the latest and greatest technology packed into their PC. Some of us, just need our personal computer to keep computing the same way it always has.
I assume AMD offers something similar, but I have no specific knowledge about that.