A:Answer If you really need the room:
I would buy a SSHD and upgrade it to the PS4. It'll be easy to install it yourself and won't cost nearly as much as a SSD.
In addition, installing the SSHD will not void your warranty (if it's still under warranty) and has been said it works better than a SSD while on your PS4.
Personally, I would not bother with getting a PS4 Pro. If you really want another PS4, for the couple of improvements on the Pro, then that's your call.
Research online the differences on the Pro / Slim / Ps4. You make the call.
PS5 will not be out till at least 2020. If you want to get a Slim or Pro, then just remember it'll probably be good for only another year or two .
