Well I pulled the trigger on a PS4 Slim. It's downloading updates as we speak.
My thought process was as follows:
1. I feel like we've hit an inflection point that there's enough exclusives now and upcoming to be worth it. I wanted to play UC4, Bound, and Bloodborne, and I want to play TLG and FFXV, then Persona 5 next year.
2. I don't have a 4K tv and don't plan on getting one anytime soon.
3. The majority of games that I will be playing most likely won't be getting a PS4 Pro patch (BB, TLG, P5).
4. The PS4 ui has hit a solid place with the recent 4.0 update with better rest mode and two factor authentication.
5. Smaller form factor and 100 dollars less than the Pro.
6. Revised and more reliable controller.
I feel like I justified the purchase well enough in my head, so I decided to go for it. Bloodborne is already queued up for download.