billsalias on 16 December 2008
I think what the OP is asking is what is different about Nintendo games or owners that sustains sales of the same title for so long.
One possible answer is there are so many new Wii owners each month that they are not old titles to them. When you add 2 million users in one month it is pretty easy to sustain good numbers for good software. Another possible answer is that there are a high percentage of Wii owners that do not follow game releases closely so they do not hear about titles until they have been out some time. This makes the demand curve is much flatter. A less charitable answer is that they have to market/sell those because no other titles this year have captured the audience.
I think it is a combination of all three personally.
