The Dell U2715H looks very tempting for an upgrade (I currently have the U2312HM), it's an excellent 1440p IPS monitor and Dell customer service and warranty are unmatched.
The thing is I think it's time to hop on to the 144Hz/G-Sync bandwagon. I like the Acer XB270HU, but the price is excessive and I don't think they have such great warranty service (for this price a 0 dead pixel guarantee should be a given). Furthermore, due to G-Sync it only has DisplayPort so you don't have HDMI available to connect a console for example.
My next upgrade will be a 1440p/IPS/27"/144Hz/G-Sync display, but when it gets affordable. Maybe Dell will release a good one soon.
I'm in the same boat, after seeing 120 comparison with 60, I don't think I could deal with an upgrade being under 100hz. After seeing the comparison, I see the anomalies found in 60hz all the time now. You might try waiting till the next season of vcards. Who knows, AMD could get itself together and release something equal to nvidia and release the same time. Then you can go freesync, OR perhaps Pascal (nvidia) will support the freesync tech (the vesa name eludes me)
Say you wanted that ultra-Wide monitor, if win10 lives up to its announcements and can force multi vcards to work in all applications, or at least current games... the differerence in cost is another videocard practically between gsync and freesync.
G-sync might ultimately be better, but many of us don't want to shell out the cost of gsync, we rather have the top end of the $
erformance ratio. example, (prior to Ti) 970 is best per dollar, 980 was just above it.
http://cdn.wccftech.com/wp-content/uploads/2015/03/AMD-FreeSync-Slide14.jpg
freesync may be capable of a lower sync rate, but they haven't released a monitor for it yet. Granted, no with a gaming monitor will live with 9fps. There are, already, more freesync monitors than gsync. The tech will catch-up with popularity.
I like Nvidia and AMD, I used AMD til their release date: performance was out of wack around nvidia 600series release. IMO Nvidia is shooting themselves in the foot for not supporting Vesa freesync. I understand it's hardware and not software but its,