To me it seems the show was made partly CG but 
still mostly with cels. So there should be really 
much cels, but well, it's Gainax, and so there 
just aren't many cels out there. I only saw 3 
cels during the years posted in this forum and 
know from a few others, but they are nearly 
impossile to find. It took me three year to find 
a Yukino cel, and a month ago, I just had the 
luck of my life ^^.