$2,199 for the basic MacBook Pro with Retina display is certainly a lot to pay for any laptop, but those looking to add a few more features without going all the way up to the next model so far haven't had a lot of options. That now looks like it's changing, though, with configuration choices for processor and storage now showing up on Apple's online store in addition to the existing one to double the memory -- letting you, for instance, bump up the processor without also jumping to a larger SSD (or vice versa). Those options aren'
