Help deciding on a monitor.

[Doubleknot]

I'm currently driving a 24" 144hz 1080p Asus vg248qe, 2 27" 60 hz 1080p ASUS VS278Q-P, and a 43" 4k toshiba TV off a 1080ti setup with the tv mounted to the wall and the 27" monitors on vesa mounts off the side of the desk. I'm looking into upgrading my main monitor the VG248qe to something with g-sync and a 1440 display instead of 1080. So my questions are twofold: 1. Is the sale on this an actual good deal, or is it one of those sales that isn't really a sale. https://www.amazon.com/Dell-Gaming-S2716DGR-LED-Lit-Monitor/dp/B0149QBOF0 . And 2: would my 1080ti be able to drive all of that, or am I better off waiting to upgrade my primary display. Also if any of you guys know of a better 1440p monitor around that pricing or cheaper pricing on a similar monitor any help is appreciated :)