If you're a last-minute Christmas type of parent who doesn't know shit about video games, and the yard critter is yammering in your ear about new video game systems and Marios or Halos or Final Fantasies, the wager at Best Circuit City Gamestop Buy is going to break it down like this for bottom line prices:
Wii: $250, but we don't have any.
PS3: $500, but we don't have any.
Xbox 360: $299, you need a memory card, we gots plenty. Discount and used games, too.
360 is going to do great this season, but no video game systems are going to sell as well overall as past generations have. This generation, all the video game companies are going to learn a lesson, and that lesson is the limit of BOHICA your average consumer has.