I can't decide if I'd be a fool to buy an Apple Watch right now. I'm ready for an upgrade, but I fear what happens long term if hardware changes are necessary.
Apple also writes horrible software and breaks perfectly fine APIs with every OS release to eventually force you into hardware upgrades.
Windows and Ubuntu have dropped support for 32 bit processors.
I can still boot my white clamshell Macbook from almost 20-years ago. It didn't disintegrate at the 5-year or 10-year mark.
That doesn't mean Apple must continue to support it.