1st Gen ASMacs? They'll be OK five years from now. It's macOS support I'm worried about, as I fear they will pull a 2006 on us and keep all the First Gens under macOS 11.
I still run with my trusty 2011 mini and a heck of a lot of old PowerPC Macs. As long as they're capable of doing things, and all signs point to the fact they are capable, then a few years of age shouldn't slow them down.