I have a 2014 rMBP with 1TB storage. My photo library has been growing exponentially and I was recently down to around 10 GB left on my hard drive. Was thinking about purchasing a new MBP to get more storage. I edit photos at home but also at work. I need my photos to be available regardless of where I am. External drives didn't seem to be an option for my needs. Wasn't excited by the new MBPs. Minimal improvements aside from the option for a 2 TB SSD. Which would cost me $4k. Just got this on Amazon: https://www.amazon.com/gp/product/B01AVF6UHK/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1 Was plug-and-play without hassles. Was easy to move my photo assets over to it (just copied my photo folders over and the LR folder). Launched LR from the copied library on the new external drive and it "just worked". Even with the default USB-C to standard USB cable it took 19 minutes to copy my ~520 GB photo library over to the new drive. Was pleasantly surprised as I was expecting something closer to several hours. The new drive is small--close to the size of a credit card. Very small. The added bonus of moving my photos over is that the drive can be connected to any computer. Since LR is now subscription and in the cloud I can use my photos on any "blessed" computer. This drive is also very good for backups--may get others to serve as clones of my main drive and/or the photo drive. Very portable and may get one or more for off-site storage. The newest MBP isn't a meaningful upgrade for me. This external drive just extended the useful life of my machine in a very real way. Wanted to share.