Any titles where the publisher made LOTS of packaging type changes like covers and disc labels, that add little if any content or extras?
Super Smash Bros Melee comes to mind. In just the NTSC-U format there might be at least *8* case inserts, assuming all these are genuine:
US original
US player's choice
US best seller
Canada original
Canada player's choice
Canada best seller
US not for resale, on front
US not for resale, on back