First off, a quick question. In 3E, I remember there were some details re: how much a caster would charge to cast a spell for the party, if they didn't have anyone who could do it themselves. Does 4E have similar guidelines for rituals? Or do you think just charging the price of a scroll is fine?
Secondly, I received this email from a player yesterday, after they finished selling off all the phat lewt they managed to drag out of the dungeon they cleared at Rivenroar.
Allow them to run the store. They hire a commoner.
The very first time they get back from an adventure, they find that the commoner has pocketed all the money from the sales and gone on a long voyage.
The second time, after finding a more trustworthy commoner, they find that he's been killed by rival adventurers and the rivals have taken all their stuff. Now, his wife wants compensation from the party for her loss...
The third time, they find the local ruler has "requisitioned" their gear to fight a war and has given them a measly 10% of its worth in exchange.
Not forgetting the taxes (perhaps as much as 50% of the sale value), the ongoing cost of keeping the store (1 gp per day?) and the fact that no-one actually wants to buy that +3 flaming longsword because they can't afford it...
Who in Rivenroar has 1,000 gp, anyway?
Honestly, being a magic merchant is a major undertaking: needing guards, a source of magic items, and customers. In the real world, a shopkeeper might sell an item for 100% of its cost, but I can assure you the profits aren't that 100%... he's lucky to get 20% back after salaries, taxes, and ongoing costs (like renting the shop).
Cheers!