The PS3 version is obviously a must have, but I can agree with Admixon, just wait until Idol Ninja is done taking his sweet time making/reconstructing the patch/game .
But the PS3 version is a must have if you want to play Saints Row on the PS3, since Volition cancelled the PS3 port of Saints Row 1 a long time ago. (like really long time ago, around 2005 to 2006)