kindle unlimited is definitely worth it for me, and there are a lot more titles that interest me than there were when it launched.
there are lots of interesting cookbooks for blenders, instant pot, etc, and there are lots of fantasy novels. i just read "the wizard's butler" on KU, and often read titles i wouldn't have tried that i ended up enjoying.
i also got my new paperwhite for half price because i'm a KU member, which was pretty cool as i was going to get it anyway