I buy most of my coffee beans from Starbucks to make coffee at home. This is definitely much cheaper than buying a cup of coffee there. However, my favorite thing to buy at Starbucks is a mocha. But like you said, it is expensive and it isn't something I get every day...more like a few time a month. Here, for a grande size, it is nearly $6 U.S. which means more than 300 pesos.