In my experience hydraulic disc brakes require less maintenance than rim brakes.
Living on a hill (like I had to go up a ~150m 23% wall to get home, and go braking down it to go places) meant I had to spend frequently on rim brake shoes and, eventually, rims. The frequent rain and mud makes it to the rim brake shoes and diminish braking power if you don't keep them clean.
That doesn't happen with hydraulics - clean them with alcohol, bleed them once each year and you're set. I agree, they're the greatest thing ever.
I've only once in my life worn out a set of rim brake pads I wore out the thin, small disc brake pads on my gravel bike in the first ~2000 miles. It didn't even _occur_ to me that the sound I was hearing was my brake pads being completely gone on what was a basically-new bike.
Hydraulic rim brakes also exist and they are amazing too
> The frequent rain and mud makes it to the rim brake shoes and diminish braking power
I'll never forget when I was a kid (13 or so) going for a ride in the city during a downpour, slamming on the brakes because a pedestrian stepped out in front of me (mixed pedestrian/bike zone, no cars, we both assumed no-one else was dumb enough to be out), and ... nothing happened. Damn near shat my pants. Luckily the pedestrian saw me and jumped out of the way.
In retrospect that was too much downpour. Could literally see water spraying out my brakes. The hot cocoa after was fantastic tho