Sorry, I didn't understood anything : In the same 
message, you managed to say that the prices are 
going up and that they are droping. That it's hard 
to find cels and that there is a lot good ones 
sold on Yahoo...

Actualy, I would say that the problem of most cels 
shops is that it's simply too hard to find enough 
good, valuable cels. There is very few put on the 
market and they are pretty expensive. You simply
can't run a real shops with cheap, not very 
popular cels : you can't sell enough of them.

People are mostly buying less cels simply because 
they can't find good ones. If there was cels for 
sale, they would buy them.
Most collectors are keeping their cels and don't 
sell them back or want prices that are too high 
for shops. Especialy as they can sell directly to 
other collectors for higher prices.

Concerning Photo and "Now and Then" cels, I don't 
think that it's the studio that suddenly released 
them : it's a long time that AIC didn't had any 
cels left. Those cels were bulk sold a few year 
ago. And it's the companies/people that bought 
them that started to sell them now. (They are not 
popular cels in Japan so they didn't bothered 
selling them before. But as it's very hard to get 
many new cels, they now sell them so that the 
shops will have new stuff : If a shop doesn't have 
new cels regularly, people stop visiting it.)

Cheers,
Yann Stettler