Kind of ironic considering how they used to be rivals, but I can see SEGA going for the Nintendo consoles. Like the old SEGA consoles, the Wii and DS have that 'charm' that makes you feel attached to it, while the 360 and PS3 are more sterile and 'machine-like' (not to say they're bad.)
This could lead me to getting a Wii too, especially if they bring Saturn or Dreamcast titles to the Virtual Console eventually. Nintendo is getting all the creative, quirky titles that put the copy-cat WWII shooter knockoffs to shame.