I am slightly annoyed at these stealth revisions Acer has done with both the X27 and XB273k. The XB273K now has 3 different models, with the original being the only one with a proper gsync module as far as I understand, and the other two being basically variations on the XV273K which is freesync.
I didn't see the X27p revision announced anywhere. Would have been nice to also has VRR over HDMI on my $1600 X27, lol. We knew what we were getting into, but it truly does feel like it was way too early to buy into these 4K 144hz monitors. Now with the mini-LED revisions coming this year supposedly, we get burned a tiny bit more.
I still love my X27, it amazes me daily in games. I did end up saving up to get a 2080Ti to power it properly. I wonder though if I should have waited a few years, as I think 2020 is the year where we will really start seeing some decent HDR options in the monitor space. The LG 27GN950 for example looks intriguing, 4K 160hz with OC, HDR600 (could be decent, could be trash).
The one thing I regret about buying the X27 is that it lacks freesync/vrr support over HDMI. That's going to suck when the new consoles release, if games take advantage of VRR on them. I'm not totally convinced they will though, I think its still in the interest of devs to go for framerate locks on console, either 30 (gross) or 60.