Halo 3 made $170 million on its first day out.
In comparison, here's a picture of the PS3 doing what it does best:

$1,000 well-spent. That's right. $1,000. That's what the PS3 REALLY costs.
$500-600= PS3 cost.
The rest= The cost in emotional pain of being mentally teabagged against your will by Kaz Hirai.