The only reason to choose one console system over another is whether one has the games you want or not.
For example, the XBox has Halo, and will have Halo 2. The PS2 had the Grand Theft Auto Series first, and a new sequel will be out this fall on PS2 only, for now. There are more games for the PS2, but that doesn't matter if you like the games available on the XBox better. It all comes down to personal preference, and maybe what your friends have.
I know I would keep it if I won the system. They're great for parties. You can hook up four controllers and duke it out with your friends all night.
goates