Wow. Yah, a large one would be nice to dry and save or sell. I've cut and kept even small burl pieces for turnings and carvings. I have a few crotch burls and cherry burls sitting around waiting for the next project.
I saved some huge crotch slabs from a cherry I cut over the winter......I also have some of that antique pine and a piece of chestnut for ya. Now to find a way to ship that 150lb box to Massachusetts....