I am thinking of getting rid of my Xbox One as I don't play any exclusive games for it.. And getting myself a PS4 Pro for the 4K as I just want to get the best out of my TV with some nice 4K content and games..
Is the PS4 Pro really that much better GFX wise than the PS4 standard?
I have a normal PS4 and a Pro and yes, it is noticeably better but varies on a game by game basis depending on how wel the developer has supported the Pro.
Of course, even the regular PS4 is a step up visually from the Xbox One on many (most) games.
Horizon: Zero Dawn looks unbelievable. Titanfall looked fantastic. Tomb Raider was excellent on the Pro. COD looks great too. Uncharted and The Last of Us also look very good on the Pro. 4k HDR Ratchet and Clank was a joy to play... There's a fair old list that is growing every day.
The new firmware patch that unlocks Pro performance on no patched titles will be a big bonus too.
I don't know what a mint box even is... Honestly mate, you're asking the wrong man, in the wrong place. Try ebay, try gumtree, try the classifieds on here.