A fun fable, but not something I could ever run in my games unfortunately. The problem with my players is they're smart, often too smart for the sake of a simple adventure. The moment the man poured out 100k coins from a sack my players would have split with the artifact and run full tilt out the back of the inn, not stopping till they were deep inside the forest.
Why? Mostly likely because: one of my players would have pointed out in order to lift a sack with 100k gold coins the person in question was likely a demi god or in possession of something to grant them the strength of one. (This is the same group of players who once pointed out approximately 10-20 gold coins weighed 1 pound of weight, leading up to the question of how the dead halfling assassin was carrying almost 20,000 gold coins in his backpack and belt pouch, at least 1000 lbs of weight)
The other likely reason I foresee my groups characters fleeing is because dumping that many coins on the table means it;s going to flow/roll/ everywhere leading to an immediate riot within the inn as everyone tries to scramble about to get a few fists fulls of it. (They saw a similar riot when in the market when a chest full of silver they were guarding/transporting got blown open by the war hammer strike from an enraged barbarian leading to a major riot and the majority of the coinage lost in the ensuing melee.)
Still for a fun tale to over heard within the tavern it could lead to some fun interaction, and make a nice cautionary fable of what happens when one flaunts their riches to freely.