I seem to remember that when Steven Gerrard doesn't play, we don't really miss him. We still win games. For all his telling contributions when he plays, there's no big holes to plug when he doesn't. Alonso didn't play, and Liverpool midfield are holding badly. Especially when Agger is out as well. In the Arsenal game, we started losing the plot when Alonso was substituted. In the Everton game, we won it after Steven Gerrard was substituted. I am not saying we won because he's substituted. But that his absence to not weaken us.
This leads me to the conclusion that Gerrard did the spectacular things well. And hence his contributions are very important when he plays. But if he is not around, we are able to cope with no problem because our basic foundation is good. But Alonso does the basic things for us very well. So when he's not around, the team crumbles, or at least stutter. So that makes Gerrard a luxury. Good to have around, but won't miss too much when we don't have it.