clubber – stop feigning interest! If you want to try them, come on over and try my bikes.
The bigger wheels mean that there is more of a drop from the wheel axle line to the BB than on a 26" bike, which keeps the BB and therefore the pedals the same height as a 26" bike. It makes me, as a tall bloke, feel more like I'm sitting in the bike than perched on top of it – so more my size.
Think of it as your little one getting a first bike – wee wheels to start, up to 16" wheels, perhaps 20", then possibly the big jump up to 26". These increase with size – so doing the same for taller people is the next logical step. You're easily taller than 95% of the people on the planet, so a bigger (IMHO) makes sense.