How bad is the bend?

Once inadvertantly bent one of those extra cels 
dealers sometime give you and then just stuck it 
in my celbook, totally forgetting about it.  
About a month later I went through that 
particular book and found the cel back to normal 
w/o any evidence that it had been bent.  

So depending on the bend you might be able to fix 
it so there wouldn't be much if any devaluing to 
your cel.  If the bend is -really- severe that 
could hurt matters.  Why don't you post a scan so 
we all can see?