Originally Posted by
WhyFi
Then don't. Stick with the "good enough" that you're familiar with. If you should want a snazzy new bike sometime down the line, and it's only available with hydro discs, kvetch about it online, pausing every once in a while to yell at the kids that just won't get off of your lawn.
I remember people saying this about 6. 7. 8, 9, 10, 11, and 12 speed cassettes/freewheels.
I'm very happy with 11 speed, and not looking forward to 12 speed. With the current standards, it doesn't give me more usable gears.