I wanted a better camera even before I had received my new 7 Plus. I knew it was better than what I had before but still not what I was hoping for.Guess so. And also that we're becoming more and more demanding. Heck, I remember when I bought (and got broke) a brand new Sony Ericsson K750i: oooh the best camera so far. Two years later, a second hand Nokia N95: oooh the best camera so far.
And these days: Ok, I've had this phone for 3.5 hours now. I want a better camera!
Ad infinitum...