I've done the same. my FLGS(s) are aware of their existence, and are seeing "a lot of interest" in them, but are so far not doing pre-orders for them as they've not received any information from their suppliers//Paizo Distributers. So I've been stuck with just checking their sites every week or so to see if they're listed yet.
Any word officially when Paizo will release the pre-order information (to Canada)?
Just recently discovered these (again) after getting the amazing Kingmaker one, so went and ordered them all. Not sure what I'm gonna do with ~15 HP tokens once they arrive, but that's a future me problem.
I'd like to see a continuing series, one per AP, and keep collecting them, so my official answer is all of them. Frozen Flame would be next in line...