Elder Scrolls III and IV were single player only and both received multiple GOTY's and sold millions of copies. Same for Mass Effect 1 and 2. I get what you're saying and it's probably true for most games, but there is definitely a very strong market for in-depth single player experiences.
oh I am not sure if that was directed at me, but if so i think you are confusing what I am saying Chief. i'm not talking about hoping a Single Player Game has MP in it.
I am talking about specifically the type of game that GEB is. and I am talking about the difference between Adhoc Multiplayer, and Online Multiplayer. It's a uniquely Portable Gaming thing.
God Eater is like Monster Hunter, and Phantasy Star Portable. Sure it has a single player mode, but it's basically built for 4-player MultiPlayer. Hunting massive monsters with your friends and crap. Those games are insanely popular in Japan, because over there, they sit around with PSPs in cafes and such, and they play the game together in public over Adhoc connections. in Japan, you don't really need online, Adhoc is enough.
but the North American style of Multiplayer is based on Online play. and when they bring those games over here from japan, they continually fail to realize this. You won't see very many people sitting in a Starbucks, or some other place, playing the same game together on their PSPs or DSes, unless maybe playing Pokemon. and thats why these wonderfully awesome Monster Hunting type games are not as popular in NA as they are in Japan. The culture is different, in regards to Multiplayer.
Americans like to play their Multiplayer Games over the Internet. These games would be vastly more popular and sell many more copies over here, if they would just stop being lazy and code an Online Multiplayer component into it.
Imagine if you could only play Battlefield 3 on your 360 in Split-Screen Multiplayer, and there was no Xbox Live play. You'll see what PSP owner go through with our more popular multiplayer games.
Thank god for Phantasy Star Portable, it's got Online. and as a result, though I did buy God Eater and I'll play it, I will end up playing Phantasy Star far more.