It'd be fun to see a black-market of cheap, knock off, must use quick potions circulating for criminal elements or emergency circumstances where people could get an influx of power for one reset in exchange for coin for banditry, shake downs, emergency attacks on the city, big DM events, etc.
even if it's an upgrade you have to buy to be able to do, like the wand-crafter one.
it'd be hilarious if the dissipating potions weren't even marked as dissipating and were left up to the brewers discretion