I picked up the game / dvd combo of Lilo & Sitch's Island of Adventure at Costco for the low price of $17.99. When it rang up, a mail in rebate form kicked out for $4.00. It is a Costco only rebate! Costco also has a new "online" web based rebate system. You fill in info from your receipt at www.costco.com on the rebate page and the system can figure out what item you should be getting the rebate on. You give your address and the system will mail you the rebate check. You don't even have to mail in your rebate! So the net cost for the game / dvd will be $13.99!