When Does Cool Become Uncool

I've been listening to a lot of tech podcasts and reading lots of tech blogs lately.  I am astounded by the amount of money that Apple makes in a single quarter.  I'm continually amazed with the shear number of people that buy iPhones and iPads.   There are lots of other phones (not really tablets) that are just as good and in some cases better than what Apple offers at this time, but people just go in and ask for an iPhone. The theory is that it is still a status symbol to have an iPhone and that it is socially cool to have one.  People don't buy Windows Phone because you don't see anyone toting one of those babies around town.

My question is, when does cool become uncool.  We have all seen trends hit the world by storm and everyone has to have the "X".  Then once everyone has "X" it's not cool to have it because everyone has one.  The great thinkers that decide these things, make up their minds that "Y" is now cool and "X" is only for losers and old people that jumped on the bandwagon too late.  I wonder if the iPhone will ever become that thing that was cool, but now is snickered at by teenagers as something only their moms and dads would use.

Granted, the Apple ecosystem and the growing number of lemmings that are tethered to it, make it more unlikely that the iPhone would become uncool as all of your "stuff" is with Apple and in their cloud (iSmog or whatever they call it).  Apple is great at making you need more iThings and to keep your existing (or even upgrade) your iThings so you can keep having access to your stuff.  So, maybe cool won't have anything to do with it, it will be just be inertia. I suppose only time will tell.