Forging

Anyone wanna explain why forging equipment costs so much? I bought out all the Azure Clumps from the exchange shop and broke 100k gold for the first time. I made an Eagle Sword that could go to +20. I got it to +15 (my first anything that high) before I literally ran out of money. I dropped under 9k for that last enhance (thankfully atk%).

Seriously, what is the blacksmith gonna do with ~90k gold?