1970 Burroughs L3000 Accounting Computer

Picked up this old computer at a lumber yard auction. This thing is the size of a small desk. It's a 1970's Burroughs L3000 "Accounting Computer". Came with a box of 15" paper rolls for printer. I'm guessing it's been sitting in the attic for some 30 or 40 years! I wonder what it's worth? Any historical value? Save it, sell it or scrap it???