Hello everyone, I need help with a question as I don't know anything about the model availabilities at apple stores. I am planning to buy the base model for new retina macbook but a part of me says that I should go for the model with 16 gb ram. So the question is do apple stores usually keep base models with upgraded rams in-store or is online store the only way for me to buy customized macbook? I searched around the forum to find an answer but I couldn't find anything recent so I felt the need to start a new thread. Thanks for sparing your time.