If you're a PC gamer, you might not need one. I don't know. On the other hand, I am not a PC gamer so I love my XB1.
Your a big guy and you know what you like and what you can afford. If money is no problem, there's nothing wrong with buying another console. I own everything (can't wait for PS VR!) And I don't regret a thing. I can play anything I want and never feel like I'm missing out--and even with every console, there are still droughts because I don't jump on every exclusive.
Do this for me: list your top ten games for the consoles you own.