It's not just cost and ads. It's having the possibility to reduce attempts to manipulate my inner reptile brain. With various clients, you can disable shorts, recommended, you have sponsorblock, you can replace youtube-face-thumbs with actual thumbs and get crowd-sourced titles that better reflect the contents.

I also don't need to manually go set speed to 1.75x and enable subs in english, it's a one-time setting. _Further_ I can download a video locally, for whatever reason (later viewing, bw throttling, risk of deletion, etc).

As if that weren't enough, I don't have to watch videos logged in, my client is just set up to download my select channels.

I now see zero use of a youtube account.