A comment for people who think the PS4 will beat out the Wii U by the end of 2013: are you ****** delusional?
The Wii U is currently at 3.19 million. Assuming it has fairly low sales of only a bit over 100,000 a month (DESPITE the impending holidays and multiple major titles), let's say it reaches 4 million by the end of the year. I'm personally predicting closer to 7 million, but let's just say 4 million.
For the PS4 to beat that in, say, one and a half months, it will need to sell a million units every ten days. The Wii and PS3 COMBINED barely managed this back in 2006, the One has a large fanbase leftover from the 360, there's still a recession, and there's a lot of 7th gen software coming out too, including a lot of the supposed killer apps for the 8th gen consoles!
If the PS4 were to beat the Wii U before the year's end, it would probably go on the be the best selling console in history by tens of millions of units.
Love and tolerate.