After a cel is in my hands, many times frankly I 
want to forget how much I paid! ;-)
I don't really care for accounting, I could be 
dead tomorrow, so I figure let's enjoy today. I 
tackle problems as they come, but I don't sit 
around planning for them or expecting them.
As for selling, once the buyer gets the item from 
me safe and sound, unless it's a close friend, I 
tend to forget who got what pretty quickly after 
it's sent to them.
Blair