Hitokiri said:
Ah, but now you are relying on modern technologies to reach a large enough audience.
No you aren't. Sotheby's and Christie's have been in existence since the mid 1700s. Auction houses dealing in expensixe commodities predate them by a significant period of time. Trade groups that buy and sell expensive items date back through to the Roman era. In point of fact, the more difficult it is to gather information, the
more likely you are to have auction houses and trade associations that deal in goods like this, since one of their major contributions is providing a venue from which information is disseminated.
If I were to drop you into LA, or London, or Paris right now, could you find a picasso for sale in the city without resorting to mas media? I doubt it, but this is essentially what the PCs want to be able to do.
I could probably find some equivalently expensive art item for sale within a day or two. A week at the most.
And yes, clearing houses for them would exists, but the volume of sales would be much less than it is today. You might have to bum around one of them for a year or two before the item you wanted came up for auction, assuming it ever does.
But you haven't noticed one of the most important elements of such a establishment: it is not only a place for sellers to advertise what they have for sale, but also for buyers to advertise what they are willing to buy. Making that item
much more likely to come up for sale. As to the volume of items, that's going to depend on the price: the more expensive items will crop up less frequently, as will buyers for those items, but most magic items aren't +5 swords, and are far less expensive.
Really powerful items are going to be like the great works of art (Mona Lisa, David, etc.), they will be considered treasures that are HIGHLY unlikely to be sold.
And yet, these works of art were commissioned, and paid for, by wealthy men and families, in exchange for cash. Which kind of makes your assertion ring hollow.
As for selling bits of holy relics and indulgences, they cost the church nothing (or near nothing) to make (assuming the holy relics aren't real, and from what I've seen many of the one they sold weren't).
They were put forward to counter the idea that magic items are "too special" to sell. If we can sell remittances for sins (up to and including murder), and relics of Jesus' life and death, I don't think that there is a very good argument for saying a
belt of giant strength is too special to sell.
The same can't be said for potions and other gear. The churches may need money, but they are hardly there to be a potion brewing factory for any wandering vagabond who can loot enough gp to afford them.
A 100% profit on potions and other minor magical gear? Sign me up, I'd love to be in a business where I could make 100% profit on a routine basis. I doubt that a church in a polytheistic world will have any reservations on getting into the trade as well, since the profit would be used for the benefit of the faith.