Sony PlayStation 4 Is Finally Adding Support For External Hard Drive (playstation.com)
The Sony PlayStation 4's next system update, out now for beta testers, will allow users to connect an external USB hard drive. From company's blog post: It's easy to upgrade the HDD that came with your PS4, but if you're still looking for more storage space on the console, we've got you covered. With this update, you have the option to store content to an external HDD. Just plug a USB 3.0 HDD into your PS4, and voila, you now have more space on the console.
Not necessary. Thankfully, they seem to be doing a great job of wrecking their own company themselves:
https://arstechnica.com/business/2017/01/sony-takes-977m-writedown-movies-have-been-flops-dvds-sales-falling/