Played_Out on 08 December 2007
I'm sad to say that Halo 3 will probably marginally outsell GTA4 on the 360, but GTA4 will cream H3 in overall sales. The attach rate of past franchise entries is not really a valid metric in this case. There were a lot of reasons to buy a PS2, but Halo was pretty much the only reason to buy an xbox (except maybe for graphics whores with an aversion to PCs). This time around it is a different story. The real litmus test will be how many 360s are sold on the back of GTA4. Both consoles will definitely see a sales spike.
