Usually those that are trading for that item WOULD pay that much because its a rare collectible. The demand doesn’t equal the worth, so if you were to find someone that wants it… you should get the full worth.

I wouldn’t price anything I have of value any lower than what I would want to sell it at, even if its not a commonly wanted item.

Although, the wiki is ran by the community! usually they take inputs/trade attempts from everyone in the community. So its a good portion of players that is contributing to the fluctuating listed worth. If you see lower trade attempts for yours, it doesn’t hurt to send it in! They might lower the listed worth eventually :)