I have recently considered the same switch. For me, the second screen is very often a source of distraction. I already have the problem of not being able to do any work at home. Previously I attributed that to the use of my PC for entertainment. Perhaps this is also a factor.

I originally bought 2 screens for productivity reasons, now I find I am much more productive working on my laptop else were. There were certainly moments where it helped productivity, but maybe that is offset by the distraction.