"There is a reason why they sold 100 Million"4.5 starson by Monkey-King69
Pros: The de-facto console for this generation
Cons: Weak online
Summary: If you can only buy one system there is only one choice as to what to buy: PlayStation 2. While it maybe not have the best graphics, it has without a doubt the best library of games over all the genres. If you are wonder what system will "likely" get a particular game you can easily assume PS2 will get the game. The systems only flaw is ist online functionality. The lack of an "integrated" online service is unfortunate, but given taht only 20% of console owners currently have broadband though and ISP its is easy to see why such a function was a low priority this generation. With that said some of the most popular online games ever appeared on PS2, so it hard not to admit Sony did exactly what it needed to and no more.
Finally, if you are reading this you are likely in the market to buy a PSTwo, so I will just say go ahead. Unlike XBOX or GameCube, the Sony PSTwo will see continued support for the next few years. Even now the system is a worthwhile long term investment.