Economy will have little affect on games sales. Look at the great depression, it is considered by many as the beginning of the golden age of hollywood which climaxed in 1939 with Gone With the Wind and The Wizard of Oz, amoung many classics.
OT-
I think the Wii will be helped by the holidays the most. Nintendo has been stockpiling TONS of Wiis and cmas is when the casuals attack in hordes.
End of 2009 Predictions (Set, January 1st 2009)
Wii- 72 million 3rd Year Peak, better slate of releases
360- 37 million Should trend down slightly after 3rd year peak
PS3- 29 million Sales should pick up next year, 3rd year peak and price cut







