Originally Posted by UmneyDurak
Exactly, I doubt 95% of commuters or road bikers encounter conditions where they actually need them. There is just a perceived need because of what you listed above. When in reality rim brakes would work just as good for their riding environment.
There's a reason some of us are big fans of disc brakes, and it's got nothing to do with the desire to spend more money or impress someone.
Need is a pretty worthless term. You don't
need a bike at all if your kid has a big wheel in the garage...