I bought a copy of some BGC OVA storyboards 
(from the last 20 minutes or so of Tinsel City, 
about 100 sheets total) for $53 on eBay a little 
over a year ago.  They WERE copies, but one of 
the pages did have some red colored-pencil-
looking writing on it (in Japanese of course 
=p), so at least I know I didn't buy something 
that's a hundredth-generation copy or something 
^_^