I don't see how any serious gamer would ignore the X1, save for financial issues.
I've bought nearly every major console since the NES (and a few less mainstream consoles as well, like the 3DO.) I find time to play almost every day, and affordability is pretty much a non-issue for anything short of another house.
I don't own an Xbox One.
I had expected to buy one this fall for Tomb Raider and Rock Band 4 but I have enough misgivings that I'll probably keep waiting. I had assumed that by now there would be a slimmer console, or at least one without a power brick that needs a fan. I had also assumed Microsoft would see the opportunity of capturing Rock Band fans with DLC investment and bend over backward to ensure compatibility with legacy peripherals for Harmonix. Sadly, there's still no MIDI drum compatibility expected at launch. Nor will RB3 work with backward compatibility so I'll have to keep the 360 connected anyway.
Maybe next year?