While your currency is likely inflating, if not hyper-inflating, the gil is STRONG!!! It was just yesterday that potions were going for 15+ gil a piece, but not now, not with gil being as strong of a currency as it is - it IS backed by gold, afterall.
I knew that hoarding gil would eventually payoff. Today's the day that I cash in :)
Cupboards full of potions and ethers, here I come!