How much would a real katana cost?

I'm curious, how much would one typically expect to pay for an authentic katana? Is there a significant difference in price between a high-quality traditional katana crafted by a skilled swordsmith and a more modern, mass-produced version? Are there certain factors that can affect the cost, such as the materials used or the intricacy of the design? Understanding the price range can help me determine which options might be most suitable for my needs and budget.