Surely disc's are just part of progress? In much the same sense as 27spd drivetrains and 5" of oil damped suspension travel is.
i shan't comment upon your mauling of the english language (whoops! i just did...) but i do take exception to your version of progress.
27 speed drivetrains are beyond silly. you generally have numerous duplicate gearings (jeeze, and i was criticizing your english?) and the mechanisms are far from idiot proof, both in setup and maintenance. give me a six speed rear with a clunky campag derailleur, a two chainwheel front, and i'll be a simple, happy and reliable little mountain biker, thank you. and i'll have less worries over my drivetrain than you, and i'll get up hills faster
and 5" travel shocks? get a life. i suspect i'm a failure 'cos i need 75 mm of front suspension travel. if i needed 5" - front or rear - i'd give up mountain biking and take up golf. (ok, that reads rather naughtily. i don't need 5" of ANYTHING, front or rear).
so what's progress? well, good carbon frames for one. any *simple*, user serviceable component for another, tyre developments, wheel developments, anything which makes mtb'ing more fun, less hassle, and makes the damn bike lighter.
bigyinn, we live on different planets. long may it remain that way.