What is the most expensive Fortnite skin worth?

I'm curious, what's the going rate for the most expensive Fortnite skin out there? I've heard whispers of astronomical prices but I'm not sure if they're fact or fiction. Can you shed some light on this for me? Are there any specific factors that drive up the value of certain skins? I'm genuinely intrigued by this aspect of the gaming world and would love to know more.