I voted to wait mainly because Bloodborne. I'm one of those people who like to play those games to death while people are still figuring them out and the coop is abundant. A great single player game can wait. Of course, not everyone wants or cares about the PS4 and/or Bloodborne but for me, I can wait to receive my goodies. Also splitting things up can just lead to problems, the disc can be damaged or lost in the mail, people may forget about receiving the game, or other human elements messing things up.
Receiving it in one big, complete package is the best option, in my opinion.