1440p does have its advantages, if you have a rig that is capable of handling 1440p with most games at decent settings/fps I don't see why not, although some games may not have native support for that resolution, i'm pretty sure 90% does, and you should have no problems if you decide to make the jump to 1440p.
If you do though, make sure you pick a LG 21:9 display, it is the best "cinematic" experience 1440p in the market, if you're going for a more competetive type of thing, Asus has a couple of great monitors aswell.