I have Intel Atom netbooks that currently run Ubuntu wonderfully. But they are low RAM and the 32bit version runs better than the 64bit (if they can even run 64bit). I am worried I will have to drop Ubuntu and switch to plain Debian because of this.
That's pretty much the definition of obsolete
No longer produced or used; out of date.
So, I think, by that definition, his point stands: it truly is the very definition of obsolete, as it is no longer produced.Your definition of obsolete, while correct, is not complete.
Also a great place for DIY project supplies. They sell a lot of electronics parts, CNC bits (not sure about the quality), quadrocoptor parts, etc.
I still use my old second-hand Samsung N220 Plus occasionally when I'm travelling, as it's lighter than my main laptop and I can't afford a light + performant one.
I'd never actually considered whether to run 32-bit or 64-bit OS on it, and just installed the 64-bit by habit.