http://www.neogaf.com/forum/showthread.php?p=21704629#post21704629
In rockstars Financial briefing they have stated that GTA4 "sold" over 17 Million worldwide. Well since we know the sold means shipped we'll take it as that
Still over 2.5 Million on shelves sounds a bit too much imo UNLESS they are combining the PS3 Liberty City Stories with this or something.
Amazing sales though!
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EDIT:
In comparison to past GTA's Shipping Figures:
15.0 mil | Grand Theft Auto III (launched about a year into the generation; sold ~10 mil after 2 years)
17.5 mil | Grand Theft Auto: Vice City (launched 2 years in the gen; ~12 mil after 2 years)
22.5 mil | Grand Theft Auto: San Andreas (launched 4 years in the gen; ~18 mil after 2 years)
17.0 mil | Grand Theft Auto IV (launched ~2 years in the gen)
