Your not wrong, I mean Starhawk does have an astounding 47k so far and its less than 3 weeks till launch. Also, I've yet to see a single commercial for the game.
Sometimes I think Sony forgets to advertise or promote their exclusives at all.
I always laugh when I see people here claim "Day one buy!" on Sony games and then it usually sells pretty poorly.
160°
100°
70°
20°
Ad 
210°
20°
40°
40°
40°
30°
doing the same for 360 yields roughly 1172k units.
conclusion, PS3 gamers dont buy games, just talk about buying them.
Sometimes I think Sony forgets to advertise or promote their exclusives at all.
I always laugh when I see people here claim "Day one buy!" on Sony games and then it usually sells pretty poorly.