I have shopped and compared dog food prices from online, to pet stores to grocery stores. I have to say that Walmart has the best prices by far. They also carry quality lines like Iams. So, if you are in need of knowing where the best prces on dog food are, Walmart came on top with my research. Also, if you watch out for the manufacturers coupons and buy in bulk you will save even more. Also remember that Walmart will match any advertised price right at their registers. Just make sure you have the ad with you and ready to show the cashier! I got stuck behind a lady that was rummaging through her purce for half an hour to bring out ads and have them matched!