I don't know about the rest of you, but GL succeeding is huge money for Gainax. Meaning more GL or other original stuff.
Gunbusters never did well because they came out way under the radar and way too expensive. And despite FLCL's following, it's still only a 5 episode OVA. And Eva might be big, but it didn't have a huge TV presence. Being on TV right away will drive sales, and fuck, it's on two hours earlier than Code Geass, and on a Monday night, which isn't necessarily the RATING'S VOID that is way fucking late on Saturday night. I hope enough people know about it being on Sci-Fi, and don't most cable access providers include Sci-Fi?