I have to disagree with you.  There really aren't 
that many collectors out there willing/able to 
drop the same kind of money you are.  Really.  
You can see this because many times new 
collectors will buy cels at very high prices, get 
tired of collecting, and then try and sell those 
cels at the same prices.  And the cels don't sell.
Lowering prices is not impossible for a 
collecting community, I can think of several 
series where the price went down, not up, because 
enough people simply refused to pay what they 
felt was too much.