What's the practical limit of CP, though? I'm at about 1270 on my main character, and starting to run out of perks to spend them on.

I craft about as much or even more master writs long after I reached CP3600, CP is just byproduct of making vouchersby far not worth the time to level up.
I agree with pretty much everything you said. More to the point: if you're going to have all those levels, may as well put them to use, right? My usual answer to, "What's the point?" is that I can be hyper-optimized for every situation, no matter how niche.Without addons it's indeed probably mostly useless, if you have to go to menu manually every time anyway.