I see FWs listed for $200 plus, but guess what? They are still listed, months later.
It's the Great Featherweight Debate, as always... what is one "worth".
Personally, I would not ever pay more than $100. But, there are people who would. (And I'm not wagging a finger! We're just all different.) So if you are a seller, you need to ask whether you care more about how much dosh you'll get (in which case, eBay is your place to be, for you can always play it to your advantage to fetch a higher penny), or who it goes to (in which case you will want to have some control over who buys it.) Neither one is a right or a wrong way to be. There are no right and wrong prices.
Good luck! :-)