According to most of the restoration pages I've 
been to today, real restoration is supposed to 
highten the cel's value, not lower it.  Then 
again, I assume these people were refering to 
Disney and vintage animation art, not anime.  If 
it's good enough for 10 thousand dollar cels tho, 
I think it's good enough for me.

According to the websites, at some point in time 
all animation art starts to fade and lose it's 
luster.  Restoration is there to fix that.  I 
really dont think having a cel restored, properly 
and by people who have been doing it since 
animation was around lowers the value of the cel 
at all.  Besides, the cels I have that I want 
restored are cels that I would never sell, so the 
worth makes no difference to me.  As long as it 
looks good Im okay with it.  This place I found 
seems to know what they're doing.  The articles 
are fascinating!  Its a whole lab dedicated to 
nothing but the art of restoring animation 
artwork.  Even defects as bad as whole chunks of 
paint gone, they can fix it as if it never 
happened.  If it's something as little as some 
line fading, I dont see how fixing it lowers the 
value of the cel.  You guys should really read 
about how they do it, it's amazing!