Prediction: PS4 to sell a minimum of around 70% of its lifetime sells in the first 2 to 3 years in the market.

[Touma]

No, generally the best years in sales for consoles are the 3rd, 4th and 5th years. The hype PS4 and the hype wii are very different. Wii with the wiimote was an inovation that attracted casual players. The hype PS4 will be over in a few months but sales well be still good in 4 or 5 years.