How many MMORPGs have to fail before companies understand that some well-known game worlds aren't the only things needed? The chase for cash (ie. constant flow of money) blinds all companies looking jealously at Blizzard. Just ask yourself a question: how many full-fledged MMOs (so forget about some asian farm-your-a$$-off, in-game stores, etc.) succeeded, apart from WoW? (I am not implying that WoW is good, as it's constantly proving to be a game that lacks certain hardcoreness, even with the, so called, 'hard instances')
My 0.02$ about MMOs nowadays.