piracy will kill 360 sales of gta iv?

[Alasted]

smiles123 said:
I know 6 people who already have gta iv on pirated copy for 360.  could this damage total sales of the game on 360 or not. what do you think

I know a guy who had a pirated copy of Halo 3 before its release.

So, I guess piracy will affect GTA IV's sales just like it affected Halo 3's sales.