'Round the Chuckbox: Is a Griswold #20 cast iron skillet worth $340?

'Round the Chuckbox: Is a Griswold #20 cast iron skillet worth $340?:

"Although a serious collector may disagree, $100 is my limit for just about any cast iron any piece. Even then it has to be a larger Dutch oven or skillet that I can use to feed a hungry crew of railroaders."

This is the mother of all cast iron skillets. I'd love to have one this big...