His presumed sales tax is weird, but I'll go with it.
Xbox 360 = $400
2 games = $120
3 wireless controllers = $150
Plus tax = $23
Total = $693
PS3 = $600
2 games = $120
3 controllers = $150
Plus tax = $30
Total = $900
And the Wii's "party" games most likely won't require any attachments anyway. WarioWare certainly won't.
Is PS3 now having 4 wireless game controllers than the classic two?
The PS3 actually supports seven controllers. I just accounted for four to keep in line with the other consoles.
Seven controllers is kind of a strange decision for maximum multiplayer options.
Well, the Super Multitap for the SNES allowed for five controllers. Maybe Sony wants to bring odd numbers back into vogue.
I remember Sony bragging about how the PS3 would be able to output to two HD displays at the same time. Funny that they decided to go with 7 players instead of 8, which would at least make sense with that option. Can the PS3 still do that, or has that feature simply been quietly dropped?
Wario Ware will have 5 players for some games.
http://us.wii.com/soft_wwsm.jsp
Could be a typo, but I'm sure it's possible. There are only 4 lights on the Wiimote to indicate which player you are, but that doesn't mean there can only be 4 players. Maybe the lights can be different colours, so 'Blue Player 1-4' would be normal P1-4, and then 'Red Player 1-4' could continue with P5-8. Hmm.
Edit: Or maybe you just pass one controller around to everyone.