... but so long for a while.  Yes, I remember the
intense days of grad school when I had to be
"functionally insane" for a few months, as I later
put it.  I'm glad that you're not quitting
collecting but doing the kind of thorough culling
that we all should do every so often, and you're
doing it without inflated expectations of price. 
Animation production materials (cels, settai sets,
sketches, BGs) make a fascinating object for
collection, and it really seems to attract a
special type of person, like you. 

Work hard, and come back when you can.  Meantime,
I'll watch for any nice $10 CCS cels you put up ^_~