Print out this page the price for the Penguin 330:
http://www.petsmart.com/global/product_detail.jsp?PRODUCT%3C%3Eprd_id=845524441776829&FOLDER%3C%3Efolder_id=2534374302030112&ASSORTMENT%3C%3East_id=2534374302023693&bmUID=1098116163688
Then take it in to the Petsmart nearist you and show the manager the web price and tell them that you want them to match the web price. Some managers wont do this but most will just to keep your buisness.
http://www.petsmart.com/global/product_detail.jsp?PRODUCT%3C%3Eprd_id=845524441776829&FOLDER%3C%3Efolder_id=2534374302030112&ASSORTMENT%3C%3East_id=2534374302023693&bmUID=1098116163688
Then take it in to the Petsmart nearist you and show the manager the web price and tell them that you want them to match the web price. Some managers wont do this but most will just to keep your buisness.