I have a 5 year old black MacBook. It has become a bit slow when I push it, especially when I'm online. I see that nefarious beachball a lot more than I used to. Chrome won't update anymore because I don't have the latest OS. It works, though. I've taken good care of it. It just seems to be getting old. So I am looking at MacBook pros. I'm sad Apple dropped down to 13" from 14" on the lower end laptops. So I am looking at the 15" models. And... really, an extra $80 for a DVD drive? I still own movies and music on discs, Apple! What am I supposed to do with those? Oh, spend $80, I guess. :-\ Anyway, I'm on a budget but I'm eyeballing a refurb 15" retina display MBP. What are the pros (apart from the obvious hardware upgrade) and cons (aside from the missing optical drive) I might be missing if I make this purchase?