Endbosses are always load-bearing :)
The easy fix to this is to just have no shops stock anything worth buying. In one of the campaigns I’m in the party is probably more wealthy than a small country but it’s a rather low magic setting so you can’t just buy magic gear or items. We’ve been investing in real estate and staff instead. But money is now far less important to the party than exploration in search of things we want and doing things for our favorite NPCs.
Also we have killed people via inverting a bag of holding full of money. Everyone loves the idea of receiving 500lbs of gold until they receive it suddenly from above at terminal velocity.
Now the adventure is about acquiring the land rights for this new gold mine, before anyone else. The guide is the only one, other than the party, that knows of the gold.
That guide better roll an insight check on the party asap and they better roll well
Screw all that, I have Fabricate, scrolls of Xorn Movement, and bags of holding. I can at least grab all the gold, silver, and platinum. Might accidentally destroy some magic items that way though.
Time to sell the rogue into slavery.
Wouldn’t it be easier to just buy a dwarven excavation team?
But not as fun.
Sell rogue into slavery
Collect money
Rogue escapes, taking slaves with them
Turn in escaped slaves for reward money
Go to new slave circle and repeat
