Re:
I think they all look ridiculous the wheels all look too big And the stems are all like an inch long.
All this new wheel size business is mostly just to sell more bikes and for people who have to be seen with the latest new toy. I cant see it makes much difference maybe with a 29er but then there must be drawbacks in other area's (low speed technical stuff).
Without all this new wheel size stuff people would probably just swap out a frame if they wanted or needed to, once they have a bike at a decent spec level already.
I'm sticking with my 26er at the moment!