Like many hobbyists, I like to do things when I want to do them... not when I must.
Water changes are a PITA, no doubt about it. Keeping a regular schedule on water changes is even more so.
It's worth it.
Other maintenance tasks, I don't usually mind. Cleaning the skimmer cup, mixing up a bucket of kalkwasser, keeping an eye on probe values, PO4 and NO3 testing (which are the only tests I run regularly)... none of that bothers me. Feeding? I enjoy that one.
Cleaning socks? Hated it bad enough that I don't use them anymore, and probably never will. Ugh.
It's not just reefing... there's usually something about any hobby that you might not care for. My other hobby is shooting, and I don't mind cleaning guns, reloading (which might count as a hobby all on it's own!), etc. But. When it comes to picking up brass, I'd almost rather let it lay, and buy new. I go as far as avoiding semi-auto firearms as much as I can... revolvers and bolt guns don't throw brass everywhere.
Looking at the OP's alternate hobbies... cars. Wrenching on what amounts to an expensive toy as a hobby == fun. Working on your primary driver because it won't start? Not so much. Gardening? I can appreciate a nice looking flower bed, and I'm always happy to eat the produce of a well tended vegetable garden, but me? Digging up weeds on the weekend? Don't count on it!