I collect older series (mainly OVA and a few
movies) from the 80s to the mid 90s. I cannot find
any high or mid-level quality cels from:
GunBuster, Iczer 1, Iczer 3, Dangaioh, Zeguy,
Guyver, Fire Tripper, Urusei Yatsura, Maison
Ikkoku, Kimagure Orange Road, BGCrisis and Crash,
Riding Bean, Rei-Lan, Shamanic Princess and
Patlabor.  Overall IMO what is currently available
is crap, most are worthy of a $10 bin at best. I
know most of the series I am searching for were
cornered years ago by certain collectors, but...
it doesn't hurt to keep a watchful eye on
developments.