That's true, credits do obfuscate cost which is something I don't like about them. If a dollar balance is used and the majority of transactions do correspond to

That's true, credits do obfuscate cost which is something I don't like about them. If a dollar balance is used and the majority of transactions do correspond to $1 spent = $1 balance, then that's intuitive (as you said) since we do that all the time with all our purchases. There was a time in the 2000's in New Zealand where some mobile phone companies would let you buy like $200 credit for $40, and then pricing of call's was some high rate like $2/minute. That's something I really really want to stay away from, since at that point it's very difficult to know what anything even costs. I'll definitely take your feedback into account, thanks!