Hi Stephen, thanks for the reply!  Actually I was 
pretty sure the cels would never get under 10,000 
yen.  I was just trying to illustrate that the 
inclusion of the sketch raises my valuation of 
the post-production cel by at least 15,000 
yen.  ..And curious how many people felt like I 
did, that they might pay more than the current 
rilezu prices to have a production sketch 
included.  (I thought some dollar amounts might 
speak to the reluctant copyright holders..)

Alas, I seem to be in a minority. :-)

thanks for the interesting info though!