I used to be a 2 or 3-screen setup, I even used QuickSynergy so I could use 1 keyboard and mouse seamlessly across Windows, Mac, and Linux desktop so I was using 3 screens with three different operating systems at once. At that time I couldn't imagine how laptop users ever survived.
But then I got deeper into using keyboard shortcuts, and can summon any application I want in a split second. I no longer worry too much about being able to see it 'all at once' when I know I can see it as fast as I need to. Naturally, I just stopped using my external displays - now they sit here all day off, not even plugged in, and I'm using my laptop.
But I feel like there's a third option, option C. I still find myself surrounded by screens, but they're phone screens and tablets in addition to my computer, rather than screens being driven by the computer alone. I'd say right now I'm a laptop + tablet user :D