I just bought a friend's PS2 for 20 dollars... it may not be the latest model, but it still has some fun games... The newest isn't always necessary and you can still get some great entertainment value out of the older system(s).
Try not to focus so much on the material things that you want but can not yet possess... I'd like an xbox 360, but I'm settling for an xbox, again, bought from a friend... It's still alright to want something like this, just don't put any heavy concepts on it... don't let the things you desire rule your life.
Also, imagine how much food a ps3 could provide a relatively medium size family in Indonesia... Do you have food on the table? Count yourself fortunate. Someone out there is thinking to themselves, I'm hungry... I really wish I had some bread.