PS4 Slim Luna or PS4 Pro?

[PulpSuicide]

I'm having a dilemma. I've been collecting many gaming related items such as collector's edition, limited edition, press kit, limited books, etc across multiple platforms/consoles but I never own a PS4 yet.

I'm thinking of getting myself a PS4 Slim Luna for the sake of my Final Fantasy XV's collection but then its price is similar to PS4 Pro. So should I go for Luna or Pro? Also, is there any possibility, rumor, news that there will be a PS4 Pro Luna?