You're making a flawed assumption, Chris.
It seems to me that you assume that his here is the case:
2008 Wii Sales: 10 million (instance)
2009 Wii sales: 7 million (-30%)
2010 Wii sales: 4.6 million (-30%)
That's not really how it works. It essentially makes having a high peak year look like a bad thing, which it most definitely is not.







