I mean, even then, they could increase the price per token, if they want to hand out fewer tokens for the price paid.

They could make this work like a prepaid SIM card, where you charge it with e.g. $10 and then you can use it until the $10 are used up.
Instead, they make it work like in-game currencies in scammy free-to-play games. Except that they didn't choose a confusing conversion rate, for some reason...