On Thursday June 26th, I looked in the Steam Market to check the Ghosts of Smissmas Time Buck's Brim's price after I unboxed one for myself, and there was 1 for sale for $125.00. I did not get a screenshot of the listing before it was sold the next day, but hopefully the graph of sales will do, as these types of items are not sold often. http://prntscr.com/xD8j2dblU0jq

There's also one sale that happened on Marketplace.tf on April 2nd for $179.99, and even if it isn't that reliable if it happened a couple months ago compared to just days, I thought I should still include it as proof to gauge a High Value. http://prntscr.com/1RcvNZKPmYI9

(note, my backpack.tf inventory does not update for some odd reason, thats why it may not show here that i own one)