Buying a cel just to use it as trade bait is a 
very bad idea. I think this is what discourages 
many collectors from putting up wishlists on 
their sites. It's very depressing to see someone 
outbid or beat you to a cel you love, just to 
have them turn around and demand a cel out of 
your gallery to get it the cel you wanted. And 
believe me, for those who watch closely the 
series they collect, they'll remember where the 
cel is from, and realize what is going on.