Not to be rude, but why keep any if you want to 
completely exit the hobby? Over time the cels you 
keep will deteriorate and in all likelihood you 
won't be protecting them as well as before. Not 
to say, you will disregard them completely and 
put them into direct sunlight, but, you might not 
keep track of when you last changed the cel bags 
or maybe the inadvertently stack cels. Just a 
thought, no need to flame.