This is a very rare, very sought after piece of cultural technological history. There are only a handful available in the entire world, and there are certainly collectors on the prowl. I had an Ebay auction running a few days ago, which I will attach a screenshot of. Bidding jumped up to $1350 before ever getting to the end bidding war. I think it's safe to say it would sell between 1500 and 2500. I would like to get that, as the tube is worth $3000, and priceless to many people-- but I'd like the cash quicker since eBay has a hold on my account payments. I would think this opportunity was a no-brainer for somebody who wants to nearly double their money pretty quickly. Or you could simply cherish a neat piece of history for less than half it's valuation.