Is there a way to quantify time as another unit of measure along with attach ratio? Shelf life of a console plays a heavy role in the attach ratio such that if two consoles had the same attach ratio but console A was on the market for half the time, it would be the more impressive stat.
The number of years in the following chart is based on the numbers of years from console release until the last significant year of software sales.
NES - 8.1 games / 9 years
SNES - 7.7 games / 8 years
N64 - 6.8 games / 6 years
GC - 9.6 games / 6 years
Wii - 5.6 games / 1.5 years
You could then break it down further into the average number of games bought per year per console owner. I believe this gives a more comparable figure to work with when comparing various consoles.
NES - 8.1 games / 9 years = 0.9 per year
SNES - 7.7 games / 8 years = 0.96 per year
N64 - 6.8 games / 6 years = 1.13 per year
GC - 9.6 games / 6 years = 1.6 per year
Wii - 5.6 games / 1.4 years = 4.00 per year
The rEVOLution is not being televised
