Many years ago, Joe Jonas Taxidermy in Denver had a deal where they would tan any elk hide with hair on for $35. I had several done, gave one to my Sister, one to my Folks, and I kept a big 6x6 hide for my self. My sister still has hers hanging over an upstairs railing, before they passed, my folks sold their for $100 and gave me the cash. My 6x6 hide pretty much covers an 8' x 8' wall in my reloading room where it has been hanging since 1978.
For a few years Pacific Hide and Fur would give me a few bucks for a green elk skin, but it was hardly worth the effort. Most of my elk hides have just gone to the dump along with the bones after I process the meat.
