£6.5k on a hobby? After all, thats what MTB to most of us is. You do it in the evenings, weekend, holidays etc etc in much the same way people pay golf club membership fees or own track day cars/motorbikes.
It truly baffles me that there are those amoungst us who, despite spending what most of the population regard as an obscene amount of money on a bicycle, are then questioning who would spend that much on a bike! Abit like those that complain about the price of a latte at a trail centre or the cost of parking before riding off on several grands worth of bike.