Like most ppl I started collecting mostly 
Quantity at first. To possess decent shots of a 
Favorite Character altho I may not have liked the 
Scene/Cel that much. 

As I started collecting more- I grew more Picky 
and I think more wiser. For me, its better to 
save up and buy 1 gorgeous cel you Really Really 
like rather than buy 3 less HQ cels(in my opinon) 
or Any cels available of a particular character 
you admire and wind up wanting to sell them 
later / realize you didn't really like the 
cels.... 

Currently I'm thining out my cel books and 
keeping only what I consider are my HQ cels and 
ones that I really like and Any new characters or 
anime I wish to collect- I'm limiting myself to 1 
or 2 really Nice Shots of Them Only .

Anyway, To each his or her own =)

Enjoy

Ame