Gamerace on 14 December 2007
GT5 will have much higher initial sales and possibly initial attach rate, but there's little doubt Mario Kart will crush it lifetime.
GT4 only outsold MK:DD by about 2m dispite having a userbase 10x the size. How could GT5 compete when the Wii will have a much larger user base?
Also a lot more racers compete directly against GT (especially on PS3) than there are that compete with MK. MK also appeals to a larger user base, something Wii specializes in.
I doubt MK will have the 30% attach rate MK:DD did on GC, but even with a 10% attach rate it'll still beat GT5 handily because of respective installed bases.
