Over the last few years I've become more of a online/multiplayer person over a single player person. But saying "It must have online or we won't publish it" is really stupid. Some games don't need online to be good, or to last longer then what's on the disc. People will like the game even less if it has some stupid tacked on online part to it. Take Skyrim for example, that game was awesome... and it was single player. Don't tack on some stupid arena thing to make it "online" just keep it single player and go on with your life.