what i don't fully understand is how people think that after buying a device, they're entitled to receiv updates which bring new functionality.... and then, if this happens say its too late or not often enough or there's only bugfixes and too few new features etc.

you buy a device, you get what's in the box. that's what you pay for. whatever comes then - third party apps, firmware updates,.... - can happen, may happen, will most likely happen. but: there's no way you could actually *expect* it.

so when you bought your phone thinking there'll be this update for bug fixes and then that update for new features etc, you're bound to be disappointed.