"The cels from Yahoo Japan are very difficult to
obtain for peaople who don't live or speak
japanese ( sellers usually don't sell ouside Japan
)so i don't compete with european or american
people who find those"

Excuse me?  I buy 95% of my items on Yahoo Japan,
and I live in the USA and don't read/write
Japanese!  That's what the deputy services are
for!  www.rinkya.com  www.shoppingmalljapan.com 
www.celga.com



And if people are actually buying the cels that
you have for sale, good for you.  How you run your
shop is nobody's business but your own.  If people
don't like it, they shouldn't buy stuff.