While Sony definately tries to get involved in all markets they dont try to undermine and destroy their competition like Microsoft does. This is the #1 reason why I won't buy Microsoft's deal.
Did you miss the PlayStation launch? :-D
Sony was considered evil for a while there until everyone had a PS in their home had convieniently forgot about Nintendo, Sega and 3DO (and Amiga).
Oh, and I'll be buying at least two next-gen consoles. :-)