Cool thread! Nice setup too.
2009 sales = 13-14M
2010 sales = 8.5M
2011 sales = 5.3M
2012 sales = 3.4M
2013 sales = 2.1M
2014 sales = 1.3M
2015 sales = 0.8M
End of life sales = 35-40M
Why I predict what I did
2009: Has sold 4.9M in 4 months. That's around 275.000 each week. It is dropping off a bit, so 225,000 for the next 4 months would be a better suggestion. That's 3.9M. Then 200K each week for 2 months equals around 1.650,000. So before November, I believe it will be at 10.5M. It sold 4M in that period in 2008, so selling 3M this year seems rather plausible. Overall for 2009: 13-14M
2010: Dropping of furhter seems likely. 150K each week (on average) for the first 10 months? I'm grabbing in the dark a bit, as it is hard to predict here. That's 6.5M. Then 2M in the holidays = 8.5M
So I believe in a 35-40% dropoff YtoY. If that continues, it will be the numbers I stated above.
My total is a bit higher than the combined of the years.
When I write Fact: in one part of the post, and opinion: (or a similar word), it's not because I can then say "my opinion can't be wrong". It is to inform what part is pure facts, and which part I try to draw a conclusion in.