That might be because it has been phenomenally successful in its DVD sales. With the release of the 11th DVD, more than 1 million 'Gundam SEED' DVDs have been sold in Japan, with three more volumes yet to come.
Source -
http://www.animenation.net/news/index.php?id=5862
This is true of 'One Piece', as well.
Every time I see that title, I think 'MAD EXLAX'
'Noir' is very consistent - 2/3 of the episodes are very similar to each other...
It's nice to see anime creators experimenting with new visual styles. That's one reason I like 'Kousestsu Hyaku Monogotari'.
With adventure stores, the devil is in the details. A fairly generic skeleton can be elevated (or debased) through attention to detail in world design and in character development.
Or is it Sheeta's from 'Castle in the Sky'? Or is it the pendant from 'Atlantis'? Or is it...
If Bones' chooses to accurately animate the effects of Mars's lower gravity, then 'The Daybreaker' might end up with a very distinctive and unusual visual style. ('Avenger' tries to do this occasionally and inconsistently, but fails to do so realistically IMHO.)
The web site for 'Melody of Oblivion' just opened -
http://www.tbs.co.jp/boukyaku/
The character designs seem very bland, without any sort of distinctive style, which is unusual for Gainax.
- dbm