If I really loved the cel and wanted it for my 
collection I wouldn't feel bad at all.  That is 
how I got my cel of Mamoru as a child for $30, 
the person I was buying it from thought it was 
from St. Tail.  I know I have sold cels at really 
cheap prices that were worth a lot more because I 
didn't know anything about the show and I am just 
glad some people have gotten some bargains!