As a family we're pretty entrenched into the Apple One services, so it'll take a bit to push us over the edge. But every hike makes me glance at the alternatives. It's really just a math problem, and so far I feel like I'm getting my money's worth out of the premium plan. The reality is that *everyone* is hiking their prices, so jumping ship doesn't necessarily save me any money. Yet.
Problem is, that Apple One is a pretty poor bundle, since you are being sold useless things or things that have better alternatives.
iCloud aside (which I think could be argued is the only decent offering in that pack), lets see:
Apple Music ---> alternatives include Spotify, which available in more places, along with Deezer, Pandora, etc. It all depends if you music is there. There's also iTunes for buying instead of "renting". I personally think that Apple Music lacks "features" that at this point should have been implemented long ago.
Fitness+ ---> An excuse of an app/service. Plenty of free options in the Internet which are better and probable more aligned with your goals
Apple TV ---> Unless you absolutely don't stream that much, it is the platform with the least content, someone might argue it has better quality, and for sure, I could give it that, but I'm pretty sure other platforms end up winning in variety alone, since at some point, you will end up having watched most of the stuff it offers.
Arcade ----> Apple and gaming are like water and oil. Kids might like it, but I think money could be better spent on a proper console or PC with actual games, rather than de-monetized mobile games. There's also GamePass if one doesnt wants to "buy" games. It doesnt helps its case that a lot of good games have gotten out of the service, and lately, shovelware has made its way in.
News+ -----> The worst of the bunch. As useless as Fitness+ is, but with the twist that it is a mess to use