Costco may be a warehouse club like Sams but it's SOO much better! I drive fifteen miles out of my way to go to Costco when there's a Sam's right down the road. I love Costco's selection and find it's worth the drive for my families' needs. Costco carries their own Kirkland brand which I have never been disappointed in. I buy organic milk that's about a third of the price of my local supermarket. I also can buy organic butter, veggies and fruit for much cheaper than even the local farmer's market. The selection isn't as good but for the price, it's still my favorite.