One thing to remember is that not all users are going to max out their plan.

This is more likely to occur on $20 plans though, especially since those are often necessary to unlock the more useful features (e.g. deep research) so people might be paying for that even if they don't actually use the tokens.

OTOH someone who's paying $200 will likely want to squeeze the most out of their subscription for that amount of money. So I wouldn't be surprised if it turns out that $20 users are subsidizing the $200 ones.