fairThere would also be no speedy advances in gaming technology if nobody bought the expensive stuff too. Where do you think the money comes from for these companies to spend R&D time! Budget model sales aren't going to cover that sadly. This applies to most things. If nobody buys the flagship model then the trickle down effect of near-future advances is less obvious.
It's like cars, if nobody buys the high specced models, then all that's left for the used market are crap spec used options down the line.