With that amount of money, you're probably over the $40,000 cap for the current version already, which would explain why Pricia doesn't want to buy any more for now. Do you still carry any talismans with a total value over $170?
Oh, and you can buy the gold and silver ore, those do *not* count towards the $40,000 value cap, meaning you can then grind your way back up to roughly $40,000 value, and then still go a bit beyond that cap by transforming stone talismans (if you have enough of them) into a gold and silver one.