Sorry to burst any bubbles but costumes don't hype me up at all except if it's DOA or TK. Most of us played the beta so that's not to much hype either.
I think the only hype we got lately was the BD and Sackboy thing, and that ICO stage. After that the hype is still gone, well for me at least. Unless they show off more stuff or characters the only time I'll get hyped again is a week before the game is released.