Don't kid yourself or talk yourself out of it. HDR looks outstanding for gaming. I turn my backlight up to 100% when it's bright in my living room. It's not blinding. It looks nice.
I see it as Gameworks in FF 15, It looks different but hell if I could say if A looks better than B in the games out there.
Granted the game that gets props for good HDR is farcry but I haven't tried that but I've tried numerous other titles on a good quality display and I really really really cannot say HDR on a PC is at all mature.
The windows experience alone makes it.. meh, for most with a screen they are comfy with in terms of resolution and refresh rate I'd hold out and not be sold on HDR.
HDR For movies, a completely different story and it completely transform some movies.
HDR Is great, HDR for PC gaming and even xbox seems a bit imature in my eyes.
Sometimes the Panels are just better with the black levels and you think its cause of the HDR but the panel is just that much better than what a person is used to, that was my 2cent on it.