Well... personally it doesn't really make a lot 
of difference if the cel was purchased from Yahoo 
Japan or if it had been one that Yann had picked 
up on a trip to Japan.  I think most of us have 
sold some of our personal cels at one point or 
another, for whatever reason.  It's not like he 
is making a habit of reselling cels on ebay that 
were purchased from Yahoo Japan.