The PS4 Pro is an ugly, expensive console that is targeted towards the very few owners out there of 4K television sets who are excited about - essentially - a remastering of games in higher resolution/textures.
It's inherently a niche product.
When the PS3 and Xbox 360 launched, it wasn't being marketed as a '1080p' console but one of next-generation graphics, where you didn't need to own a new TV to notice or appreciate the substantial leap in visuals.
The PS4 Pro is nothing more than a glorified add-on; the modern day Rumble Pack accessory, except with the additional need of further investment to 'see' the investment. I'm actually amazed at how much hype there seems to be about it as it is.
It reminds me of iPhone 6s owners pre-ordering an iPhone 7.