Like others have said, if it’s not for you because of those reasons, then just stay with the one or two services.
I already had Apple Music, iCloud storage Arcade and Apple TV and had no plans to change that, so it made sense to just get the top level for pricing alone (and I hate getting charged at different times if the month for all those). I really want Apple News as I’ve clicked on enough stories that were on the paid tier and am also using the widget more (stacked with my interests).
The Fitness part intrigues me as well, especially with Covid going on.
All of that is just bonus! This is a great idea not only for people like me, but it will certainly draw people in to other services once they are either forced to try them since they are paying for them anyway or simply because it won’t cost much more at the end of the day to try them.
Read the article on how Apple is now the 4th largest phone provider in the world and you’ll also see why they are doing this.