Can you also adjust the vendor buying price for Miner's Mud? It seems like a drink that costs 6p and a PoFire drop would sell for more than a few gold. I don't want to make a profit, but it would be nice to get back more than 2.5% of the expense.
Maybe they are only purchasable in 20 stacks then? Admittedly I didn't try to stack them after I bought them, but they definitely couldn't be bought 100 at a time. I'll double check. Thanks!