The Hero's Path

In my opinion, potions shouldn't be sold at all, regardless of the price, because in the later stages of the game, the amount of money doesn't matter – you can earn as much as you want from bank interest, races, and battles. Potions should be given as rewards for completing quests and tasks in hunter guilds (and those found on corpses), so that their quantity is limited and it wouldn't be tempting to use them in every battle, but only when absolutely necessary.
The same applies to potion ingredients (or penalize potion crafting with a loss of in-game time).
Then quests will remain relevant throughout the entire game.
By the way, it would also be good to introduce a penalty for using "Hour of Power" and "Hour of Resistance," similar to the penalty for "Hour of Swiftness."
And the selling prices for resources should also be increased, while the buying prices should be lowered, and the exchange rates for resources should be made stricter.

P.S. By the way, having a free shipyard in an elven city makes the quest to restore the shipyard in the imperial city completely irrelevant.