"It sounds kind of silly, but I am more likely to 
spend money very casually on popular series like 
CCS because I know I can resell them fairly 
easily. However, I have to really sit and think 
about the pricey Lupin or Jubei Chan cels I buy 
because I know that there are fewer people who 
collect from those series."

This was what I was looking for.  How people 
rationalize and balance what they want versus 
price and ability to "get out" at some point.