I'm toying with the idea of getting a 2015 Macbook due to the falling prices and the fact that the size and shape is appealing to me as a second computer (I have a 27" iMac that I use for most things). So I'm curious, how is the original 12" model faring these days, especially in terms of performance? Will a base model continue to perform okay currently and for the shortish future? I know about the keyboard issues and potential for failure there. Thanks! EDIT: I should also add that I'm only really considering this as prices are somewhat cheap (I've seen a base go for around $500).