If they're all $10 per month, $1000 total, I cannot afford to subscribe to all of them and I'll likely subscribe to none of them.
If they're all $1 per month, $100 total, I could afford to subscribe to all of them but I won't. I'll pick one or two killer apps and only pay for those.
If they're all $0.10 per month, $10 total, I will subscribe to all of them, and maybe after some time weed out one or two that I never use.
Still I think there are workarounds: Maybe I can pay Apple $20/mo for 2000 'points' that I spend on whatever subscriptions I want, and they pass the points/payments along in bulk to each vendor. Not sure.