I was recently looking at currency items on Ebay, and I came across a 1999 $25 dollar Proof Gold coin that was for sale, and noticed it had a “Buy It Now” price of $2,355 dollars. I am fairly new to collecting coins, so I was hoping someone could please possibly help me out [...]

Or would it be worth less? Does it have to be in mint condition to be worth the spot price?
Thanks