Do you know anyone that has a 1440p monitor? you could set them up side by side and test it out. i don’t think 1440p is that much of an improvement. i personally think 1080p looks just fine and i plan on staying here for the next few years, and setting a 3 monitor surround. Once 4k becomes the norm and has 120+ refresh rates, then I will consider bumping up my resolution, but it will be a few years before the quality monitors at the 120hz+ range, and hardware required to run high fps (100+) are affordable. but 1440 just isn’t worth it IMO.
Edit: I don’t think I can ever go back to playing at 60hz, call me a snob but I don’t like playing at 60hz anymore.