I think it's just a nice strategy to sell more dvds when the series goes on sale.
Not hard thinking about it

Mizuho Sensei
from Onegai Teacher ^^

Some Mangas i recommend (some are already on sale some are scalations)

Ai yori aoshi, Getbackers, Rave, Love Hina, Oh my Goddess, Hellsing
Tenjou Tenge, Bleach, DeathNote, Midori no Hibi, Ichigo 100%, Monster, 20th Century Boys
and some more but to many to post them all

It's an old time favorite of mine!!! Skuld is a close second in Ah megami sama =P

Mine was Trigun and Love Hina =)

i don't really care if it's japanese or of another country as long as i enjoy it it's fine for me