Signs are hot property. I agree that it seems pricey but you never know. He might get that much. I paid attention to an online auction last winter that had an old Homelite sign. The sign was an early one with a 26 LCS on it. I noticed that a portion of the bottom had been cut off but it still brought $550.
I've known the seller for some time. I would venture to say that he the largest inventory of chainsaw-related items in the country. He messaged some pics to me the other day of a large buyout from a collector that had a beautiful 3100-G in the bunch.