I have not been on the site for a while, but was reading an article today in reference to this Pokemon card that supposedly has been receiving offers of $50,000 for it, and has a current asking price of $100,000.
As with most things in our hobbies, one can "ask" any price for an item. Key is if anyone is willing to pay that amount.
I know I have outwaited a few sellers on YJ that started auctions well over 100K yen and eventually the price came down to an amount I was willing to pay even if it took a year or three.
"Like the wind crying endlessly through the universe, Time carries away the names and the deeds of conquerors and commoners alike. And all that we are, all that remains, is in the memories of those who cared we came this way for a brief moment." Harlan Ellison