My good buddy VX was looking for attach ratios, so even though i wouldn' t usually do this...

According to NPD (and so for the US only) - and coming by way of the ever so vile Joystiq:

Xbox 360 = 6.59 (hardware total sold = 6.8 million; software total sold = 44.8 million)

PlayStation 3 = 3.58 (hardware total sold = 1.9 million; software total sold = 6.8 million)

Wii = 3.44 (hardware total sold = 4.5 million; software total sold = 15.5 million)

What' s interesting is that Sony has sold 2.6M less PS3' s than Nintendo has Wii' s and yet the software attach ratio is about the same. Not good for Nintendo, especially given that Wii Play [unfairly?] counts for Nintendo' s software total and has sold approx 300k every month since launch. Removing the Wii Play sales would take Wii' s " actual" attach ratio down to about 3.00