Using a single 1920x1080 screen feels super cramped to me, however using a single 2560x1440 screen is more than manageable.
well it's not really about the resolution... I always seem to have a stream/a video, a guide if i'm doing something precise, a map if i'm playing DayZ, my music player if i'm playing something
I watch so much Twitch while doing something else, I could never go back to having a single monitor setup
I use dual monitors at work. While I agree from a productivity standpoint that it's so much better, from a gaming standpoint I only need a single monitor.
I'll have to post some pics soon of my humble gaming setup.
depends on what you play. In exemple : playing CS:GO without browsing on my second screen when i'm dead bores the hell out of me