Cloud lesson
I don't think the lesson here is never buy anything which relies on a service run by someone else to be useful, because actually in this instance it's absolutely fine. If you have an in warranty link, it gets upgraded to a harmony hub for free. Great. If it's out of warranty you've been given notice and you get a discount. Not great but fine.
Contrast that with pebble, where your watch just stops working.
So the lesson is, if you're going to rely on someone else's service continuing to run, make sure they're a big company with a reputation to protect.