In the new event shop, I noticed the seal says 'Maybe we can barter.' so why not make that an option! It would be much more interactive for the players. You can trade items you have for a chance at a full or partial exchange.

Haggling - Haggle too much/too low and price for the item goes up until next RO. Successfully haggle, and the price goes down to the price you decided on until next RO. It should be randomized, with an option of keeping it safe and bartering only a few DB down for a lesser chance of the price jump, though still very possible. The lower you go the higher chance of heightened prices and so on!

Please feel free to add to this, and if you disagree then try to explain why if you can! It would help me to understand any flaws there might be with this idea!

This would also allow you to trade a treasure map for a specific discount on available items WITHOUT the risk of haggling!

Thank you to Mad Hyena#29080 for this idea!

Note: I was tired making this and switched a few things around even after doing research thank you [ heartbroken ] [ G2 ]#209190 for pointing it out!