Costco is the best!! All of you USA Rx buyers are lucky as the main group of USA Rx vendors(basically Roxie vendors) are all great and will do you right. Costco just happens to be the cream.... I am glad that I am in this group with vendors like him. It is great to know that when I am out I can recommend him and I am 100% certain they will get the King treatment. Costco help's me too. Great vendor and even a better person... Costco is the real king