Well, to be honest, I'm keeping some b/c frankly, 
I can't let them go.  : P  I suppose it doesn't 
really make logical sense, but, as an example, I 
have a Ferio cel that if I sold it, I would 
probably cry for weeks over its departure.  I'm 
not interested in further increasing my 
collection, though, so I guess you could say that 
the ones I'm keeping are the cels that have made 
me super happy (besides, the money has been spent 
on those for years now, so it's not like I'm 
blowing money on them by keeping them).  

As for protecting them, I know that with cels, 
like art posters and old maps (which I also 
collected at one stage), there's nothing you can 
do to ultimately stop them from deteriorating a 
little.  But that aside, I follow most basic 
practices that collectors on the forum do.  I 
store all my cels in a big Itoya portfolio, 
inside of their cel bags (and I usually have 
separate bags for the sketches if I can manage 
it).  The ones I'm keeping will likely end up 
getting framed when I have the money, and when I 
do that, I'll get the archival paper, matting, 
and the UV protectant glass (the same stuff I 
used for an old map I framed).  

The only thing I haven't done is change the cel 
bags regularly, and that's b/c I didn't realize I 
needed to.  I know that cels can get stuck to 
sketches over time, or layers stick together, but 
there isn't all that much I can do to prevent 
that short of putting cels and sketches in 
separate bags--at least that I know of.  

Don't worry, I'm not taking your post as a 
flame.  : P  It's a logical question to ask, 
given what I said earlier.  So I guess to 
conclude, I'm keeping the cels that I can't 
really bear the thought of parting with--the ones 
that have kept me in the hobby and made me the 
happiest.  The rest will go, b/c I don't care 
about them as I should, and others will 
appreciate them more, I believe.  Does that seem 
a little clearer?

Thanks for the question, and if you have any 
advice for how I should frame the cels, or store 
them better than I have been doing, I would 
appreciate hearing it!  ^_^

Ja ne!

Kaerra