Sorry to revive this but making a random new thread in stead of this one, which is still searched by people looking about 21:9, would be a misnomer which leaves misinformation.
so the main thing I wanted to add to this would be that 4k bluray has now become a standard. Movies viewed on a 4k display waste the vertical space at 16:9, whereas a 1440p ultrawide only misses out on a 400px width either side which is scaled down slightly with the 1440 height. Yes pixel density is a thing but seeing both side-by-side really shows that pixel density is not everything.
Now I must say. In 10 years or so when 4k ultrawide is applicable, I'll upgrade in a heartbeat. But until then, being the owner of both a 4k display and 1440p ultrawide: ultrawide is the way forward right now.
The amazing horizontal field of view in gaming, without 'fish lensing' also adds a lot more than just a crisper image; which at this time, cannot run at a constant 60fps with dual 980tis.
