Well they didn't turn around... They always had good sales all things considered, but bellow their baseline. And kept that with ps3 ending bellow ps1. WiiU is the same in selling less than gamecube.
The thing is when PlayStation failing in console is by selling almost as much as Nintendo in their biggest success.

duduspace11 "Well, since we are estimating costs, Pokemon Red/Blue did cost Nintendo about $50m to make back in 1996"
http://gamrconnect.vgchartz.com/post.php?id=8808363
Mr Puggsly: "Hehe, I said good profit. You said big profit. Frankly, not losing money is what I meant by good. Don't get hung up on semantics"
http://gamrconnect.vgchartz.com/post.php?id=9008994
Azzanation: "PS5 wouldn't sold out at launch without scalpers."







