Originally Posted by
Lazyass
But if your rim is slightly out of true with rim brakes it's easy to true it with the wheel on the bike, just center it between the pads. You can pull over to the side of the road and do it in 2 minutes or less.
But with disc brakes you don't have to pull over to the side of the road and waste 2 minutes of your time to true the wheel. Disc Brakes are unaffected even when the wheel is not true. Disc for the win.