Saints Row is a co-op game only, IMO, like Borderlands. SR4 looks to be nutty and off the wall, but I think they made it that way knowing many people will co-op it (which I plan to do starting tonight).
You and a buddy running around naked with a mexican wrestling mask on, flying in the air and throwing cars at bag guys with your mind is just simply a fun time. Too many games take themselves seriously these days and Saints Row is a nice refreshing break from that, IMO.
"You lack the requisite spine and testicular fortitude to study under me"
"You do not know the first note of the music that moves me."