U2 had one after three, so that's also not that many. The debut by The Red Devils was a live CD (unfortunately it was also their only CD). As long as it adds something I don't mind live albums.
Besides, the Coldplay live CD is just a bonus with the DVD.
I haven't gotten it yet but I have to. I have yet to kick my AROBTTH compulsive-listening habit. Along with my still-active Zooropa compulsive-listening habit..........that's life during wartime. Yes, I'm definitely a creature of habit.