I can think of a fair few shows where it's unlikely people would want a CE. I know it's not an AL title but something like Samurai Bride (which I own, in the interest of transparency
) is more of a 'filler' show which very few people would be excited enough to buy a CE for. Gimmicky tat like the infamous Shuffle! panties perhaps, since the bundle would make a fun gift that way, but the kind of people who would get excited about some of the more intelligent bonus material for that kind of show probably bought the JP version long ago. And number in the double digits at best in this country.
Niche slice of life shows, weird comedies, artsy psychological shows, high quality action; I can imagine all of these having a hardcore paying audience who would support a special edition. Even shounen titles can probably drum up enough interest to shift CEs - the younger audience will go for cheap editions but the older, richer young-at-heart fans are still out there buying up Viz's premium Naruto manga wooden boxes and other wallet-killing goodies.
R