Amazon offers Prime members the LittleBigPlanet: Karting for PlayStation 3
with free shipping
. (Non-members get free shipping on orders over $35; otherwise shipping adds $4.98.) That's $2 under our September mention and the best price we've seen for this game new. (It's a current price low by $9.)
Orders placed today (December 22) using 2-Day Shipping will arrive by Christmas; it's free for Prime members or $7.98 for everyone else.