Wii+PS3 owners >= 3.44MHuh, so can someone with more affinity to math calculate the actual total number of next-gen console owners in the US?
Wii+360 owners >= 7.00M
360+PS3 owners >= 2.86M
That's using 15.9M, 8.2M and 21.1M as LTDs for Xbox 360, PS3 and Wii respectively.
The report doesn't disclose figures for triple ownership. The report doesn't even state whether or not triple ownership is included or excluded. Thus someone with a Wii and a PS3 and an Xbox 360 would count either towards all three dual-ownership groups (Wii+PS3, Wii+360 and PS3+360) or be not counted at all. That's why 1)you can infer only lower bounds from this data and 2)you should not start subtracting numbers from each other and expect to get meaningful results.