You know, I guess if they went with that "common" method of including the game with a soundtrack (or "preview" of the soundtrack, where it has 20 tracks from the game or whatever) and an artbook, I'd be more desperate to order the first print limited edition.
(That bribery is how I originally got into SMT:P3 XDD)
Plus, the BGM and menu music in iM@S is nice. I guess it just gets overshadowed by the idols' music and stuff. They did have a BGM CD at one point though, didn't they?
Well, we've only seen one suit. Other artwork must be on other cards... and I'm sure there must be more than four pieces of artwork out for each character right now, but I can't seem to recall any more than the yellow/green outfits and Ryuuguu's.
Well, there's drawn pictures for everyone (except RK, as far as we know) in the Floral and Luxury stage outfits, and probably the Cosmic & Funny (Starry? I forget) as well. Somewhere.
They probably have the consistent outfit type dependent on suite (like Miki will always be Ace, Ricchan 2, etc. etc.), though I don't know what they'll do with RicchanP and RK.