Despite an earlier report stating a markdown was not on the horizon for the Wii U, Costco has stuck it to the man and done just that, slashing the price of both SKUs by $50.
The "Deluxe" 32GB bundle is currently listed for $299.97, and the "Basic" at $244.97. There is a $15 sur-charge for non-members, though, but even at $35 off it's still a steal. There's no word on how long this will last, so mind the rhyme and act fast!
Update: Costco has raised the price back up a bit, but still has the Wii U as $10 off each bundle -- $289.99 (Basic) and $339.99 (Deluxe).
[Thanks, Dale Lee!]