So I found a good price on both an IPS (Asus PB278Q) 1440p monitor and a TN 4K panel (Asus PB287Q). Now I definitely won't be able to game on neither 1440p or 4K as I have a GTX 760, but for now I will plan to just watch movies and surf the web until I'll upgrade my system maybe 1 or 2 years down the road. For "futureproofing", where I'll be using my monitor for many years down the road, would the 4k monitor or 1440p be a good idea?