Shadow1980 said:
Pretty solid. The PS2 sold 630k its first weekend and the PS3 about 88k. And here's how those two were after eight weeks: PS2: 1404k PS3: 467k I'm thinking the PS4 will have passed 467k before the end of March. By year's end, I think it'll get to around 2 million. The PS2 sold just over 3 million from its March launch to the end of 2000, while the PS3 sold 1.7 million in its first 13 months. I don't think it'll sell quite as fast as the Wii, but like previous PlayStation systems it'll have stronger legs and thus won't decline as rapidly after peaking (which it'll likely do by 2016).
Edited to add: Here's my sure-to-be-completely-wrong projections of cumulative PS4 and Wii U sales, compared to the PS2, GC, Wii, and PS3:

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The difference from 2006 ps3 and ps4 2014 is 6 years of a market change.
Ps4 will be lucky like the vita and wiiu to get a million. Looking pass launch I can see it hitting 10k > HW.
If you made a graph with just 3ds,vita and wiiu it wouldn't look that pretty for Ps4.
All three struggled and only 3ds managed to get to 2 million. That was kinda barely in 2011 hit 4 million.
Even in ps3 peak years it never sold 2 million in a year and this is after the pricecut. Based on what data makes you think it's going to even follow any pattern 10 years ago? We would have to ignore many current market trends just to believe that sudden its going to do way better than ps3 in peak years with no games.