To be fair you really have to take a look at how much ps2 increased dvd sales and sony pictures.
Then you also have to look at the BR market and see how much sony has made with sony pictures and BR media.
ps2 and ps3 are not solely gaming machines.
and of course how much have they increased brandname.
There are many factors that have value, not just dollar signs.
(to illustrate: MS has lost a lot of money. Let's face it, much more than sony has lost on the ps3. However, in the last two generations they have literally upseated sony and have cut out a space in the livingroom for themselves. From this new base of operations, they tie together streaming movies, music and other things directly from wireless access. Making a direct connection to the PC room. Also it increases brand recognition and loyalty through use and age range. If xbox can get 1 out of 10 people who were going to buy a mac to buy a pc, then they've just recouperated all that loss.)
However, if you want to look at monetary figures, remember that their investor relations page shows currency rates affecting nearly 40% of the losses.
