Macbook Pros at Costco

When I checked at our Costco, they did not have an in-store option for more than the base 8GB of RAM in MacBook Pros. RAM in MacBook Pros cannot be increased over what was present when you bought it so, if you want more than 8GB RAM (16 GB recommended for future OS versions) you need to see if Costco can provide that or order one from Apple. The latter is my preference.

Remember, with current MacBook Pros you cannot add RAM or increase storage after purchase. Buy what you'll need in two years now.

No. However, you'd be stuck with the configurations that they have. I don't believe they can order any special configurations like you could at an Apple Store.