The answer is usually something like: All the good stuff has been slabbed.
Oh, okay, so paying for the slab is just paying shake down money?
This Baby is airtited:
(http://www.geocities.com/scottishmoney/usa/1794.jpg)
Since I have no interests at all in selling her, why would I slab her? Unfortunately most people trust slabbing companies and that is the only way you can sell a coin like this now, unless you take a huge bite on the asking price.