Your just suporting a monopoly. Microsoft sucks and everyone knows it. Buy Ps2 and stop giving money to people who don't deserve it. Sony rocks, dude. I rather not buy a game that cost almost as much as the system.
I'd have to go with my boy Und3ertak3r on this one.

Sony has its hands in the motion picture industry and the music recording industry. They sign the artists, produce the movies and records, own the theaters you see them in, sell the CD's and DVD's for you to watch at home.

But wait- there's more! They build and sell the CD players and the DVD players and the TV's you watch them on.

They sell game console systems and games to play on the console systems.

They sell computer systems and computer components. They will sell you a DVD recorder or a CD recorder or a minidisc with special CD-ripping technology to help you burn faster- and then send their RIAA / MPAA gustapo arm to sue your ass for doing so.

They are making money coming and going and arguably have control over more markets than Microsoft (not that Microsoft isn't trying their damndest to crack every market conceivable).

If you are looking for a good guy to support in the face of Microsoft's "monopoly" I don't think Sony is the way to go. Its like saying don't support Hitler for human rights- support Stalin, he's our man!