I currently have a 2016 12" M5/512GB MacBook. I got an incredible deal on it and it's currently my only personal home computer (I only use it just for casual use). However, I'm debating on getting a laptop for both personal AND professional purposes, and if I do this, I'll really need it to be a able to handle whatever I might throw at it. So, I'm thinking about getting more of a "workforce" laptop if I do this and keeping my M5 MacBook for the purposes I presently use it for. I love the Air series, and I'm ok with the non retina screen. I'm in the market to get a fully spec'ed out 2015 Air (i7, 8GB RAM, 500GB storage) to use as my "workhorse" laptop. I've come across two really good deals and I'm trying to make up my mind between them. One is the 11" version and the other is the 13". Both are in mint condition, still under initial one year warranty, and the same price, $1K. I just can't decide on which one to get. I keep going back and forth weighing the pros and cons of portability, battery life, SD card slot, form factor, resale value, screen real estate, pixel density/resolution, aspect ratio, etc. So, I thought I'd set up a poll for help in making this decision. Also, I'd welcome any comments or advice. My third option is to sell my current 2016 12" M5 MacBook and upgrade to the top of the line M7 version, which would cost me around $300-$400 more after all is said and done. Then, hopefully, I would be able to use this "maxed out" Mac for all my uses and in lieu of purchasing the Air. And just to note, I considered the 2016 non TB MacBook Pro as an option, but decided against it as I'm not a big fan of 1st Generation Apple products. Just too many bugs... Look forward to responses and any help! Thanks!