Cels from the Miyu OAV are very rare and very 
expensive. (Count at least $800 for a good 
close-up of Miyu, probably more)

There was many cels from the TV serie so they 
weren't expensive for some time. But now they are 
becoming to be hard to find in Japan and prices 
are raising. A few dealers outside of Japan, like 
myself, got many from AIC. That's why we had low 
prices. But in Japan they always were more 
expensive and now they are much more expensive.
(I saw many close-up of Miyu or cels of Larva 
going for more than $300)

Cheers,
Yann Stettler