Keep in mind that if selling cels was not a 
lucrative occupation, the people doing it would 
stop doing it.  Whatever their personal reasons, 
in general they are not doing it to "be nice" and 
they are not doing it "offer cels outside of 
japan".  They are doing it for personal gain 
(usually money) and if they weren't making good 
money, they wouldn't do it.

I am not saying that they are not good, honest 
people.  I am not saying that I am not thankful 
that they do it.  But there is no reason to kiss 
ass because they are doing it.  Yes prices may 
have sky-rocketed in Japan.  But obviously they 
are still low enough that they are reasonably 
sure that they can stilll turn a nice profit or 
they would not have bought these higher priced 
cels.

By the way, there are several dealers for whom 
this is not the case, but that is the exception, 
not the rule.  

Just my two cents