You could make that argument if:
1. You find out where the consoles are sold. It's pointless to include population where electricity isn't the norm.
2. You find out the populations where the consoles are sold.
3. You compare the population in each country where the console is sold and compare it to the PS2 era.
4. You factor in the recession. This may be impossible
5. Find out how many people bought the same console multiple times. This may also be impossible
6. Now do the percentage of the population that owns the consoles with all the information you have found included.
You really didn't do a mathematical interpretation, you did multiplication and didn't factor in loads of data. You would still have to take into account the time-value of money as well.
