The True Cost

The 6th-level spell heroes feast is the go-to buff for high level adventurers. It provides useful temporary hit points and immunity to poison and fear, which are very useful. And it lasts for 24 hours, so it can be consumed at the end of the day, allowing for a long rest afterwards to regain the expended spell slot. But each time you cast it, you burn a full thousand gold pieces of wealth. It can eat through a party’s resources quite quickly. 

But just because the party has 10,000 gp lying around doesn’t mean they can just stock-up on a half-dozen gem-encrusted bowls while lurking around the capital city. Realistically, how many bowls worth a thousand gold pieces exist in the world? That’s a heck of a lot of money. Most merchants aren’t going to have a thousand gold of their business’ money invested in such a thing: there’s not a regular market for such goods. Even nobles with more money than sense aren’t running around buying jewel-bedazzled serving dishes on a regular basis.

Realistically, the party has to order them two weeks in advance and have them artisanally made with great expense. Alternatively, they’re cheaply made but hideously tacky gold and silver affairs completely covered in hundreds of gemstones, like a Trump-brand chamberpot. But that seldom happens, as the party doesn’t commission a bowl. They just buy them. Which means that most of the time, those bowls aren’t valuable because they’re new but made of a buttload of platinum and diamonds, but valuable because they’re rare. Artifacts and art objects of historical value. Stuff that belongs in a museum or in some private collection.

And a cleric is just reducing it to fine ash so their adventuring party doesn’t have to worry about poison.