I just read Infinite Crisis Secret Files & Origins 2005. And while it actually seemed to make less sense than the regular Infinite Crisis issues, I did enjoy the fact that, basically, it's about two guys who have done nothing more than sit around reading comics for the past twenty years wishing things could be just like they used to be. Which probably sums up Infinite Crisis' target audience, really.
(Here, I'm not talking about my friends who are reading and enjoying it. I'm talking about the people who post on Internet message boards about how wonderful it would be to see Anarky and Booster Gold get their chance in the spotlight again.)