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How many people here are aware that product life cycles are bell shaped curves?? And if you have Curve A and Curve B, then you shift curve A to the left one year, it gives that curve a significant advantage in terms of total sales for a large period of time even if Curve B is overall a greater curve. Right now the 360 has that significant advantage, but the PS3 has statistics that suggest it has a larger bell shaped curve for the PS3 which indicates at some point the PS3 will outsell the 360. Does everything work out in the real world like it does in theory? No. But if I was an educated betting man, I would be betting that the PS3 would pass the 360.

If you look at the sales numbers you may not recognize the bell shape but that is because of the seasonal sales fluctuations over the course of a given year. But if you go year by year sales the bell shape will reveal itself.