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Hydro discs just need new pads, same as rim brakes. If anything, my disc pad changes are quicker than rim pad changes. I did the rim brake pads on a friends bike recently and forgot how filthy that gets. I do like the ability to just grab the caliper and yank it straight though. Adjusting disc brake calipers is more faff but still pretty simple. Rim brakes are easier to see you're about to die, disc brakes hide it from you more. My missus manages to wait until the levers are into the bars on rim and disc bikes though so I think that's just personal laziness and both systems suffer.
Well, this is more fun than debugging someone else's shitty app.
sure maintenance is a thing in comparison to rim brakes but it comes at a trade off of better braking in all conditions and can use carbon rims