The new Costco in Nampa is open and I am very happy about it! We had been driving to the Costco in Boise and shopping at the very crowded store there, but it was a shopping expedition I dreaded every time. The new Costco in Nampa has, so far, been crowd-free. I'm sure it will pick up business when the new freeway interchange is complete, but for now shopping at Costco is fun again. It's even possible to browse--rather than just trying to make your way to the product you want, pick it up, and get out as soon as possible. What a delight!