First off, I'm not the original poster... But, 
for you to say an "average" price for Trunks cels 
is 600.00 is *very* high.  Most sell for around 
250 - 300.  Those at Taro were extremely 
overpriced (no offense to them, more power for 
being able to get that for them), and I was 
pretty shocked that they would sell for such an 
extreme price.  I'm not taking anyone's side in 
this matter, but just because a couple of cels 
have sold for an overinflated price doesn't make 
it an average.  Just my thoughts.