How about this: Having played some classic. You really deal in copper, silver and only much later gold.
Why not a platinum, diamond or Ruthenium currency and reduce these numbers. I mean they’ve already scaled back to 60 for SL.
There’s also all these alternative currencies that become obsolete after an expansion, but it would be nice to have an exchange bank for that stuff. You know my max manashards, apexis, etc. Convert that to gold or higher after I move into the next expansion or even during.