It’s necessary for people who aren’t you, with a different use case? I’m a person who is stoked at this idea. I run a publishing company, and I have an iMac at home, but this is perfect for out and about. My hands are too large for the 12 inch. I need at least 13 for my palms to have a comfortable rest. I don’t need amazing power for my coffee shop machine. Basic word processing, Spotify, and some photoshop. Retina screen is a must. This machine would be perfect. Espically if it’s $999. As for the 13 in MBP, I can’t spend $1500 for what I want (256 gig) when with this model I could get what I want for probably $1200.