If you are still looking for one of these, the Walmart ad that I got in todays paper (12/27) So Cal, shows the Core system on the cover for $ 299.92 and the Premium one for $ 399.92. I would assume they have some in stock now, but have not confirmed it.
Games also listed, Kameo & PGR for $49.92
Games also listed, Kameo & PGR for $49.92