I think it's better if PS4 will be released nearly same time of a new generation of xbox, or sony will be digged soon.
If you consider we will pay uber cool games the same price of ps3 ones, who the hell will be anymore interested to pay the same game's price for some trash with lower resolution, half graphic quality on ps3? If ps4 will be released too late, noone will wait it, nor developer will be interested. Sony ps3- new xbox M$ could be a funny comparison, one day. Wake up, Sony