2nd monitor, 4k 27" or 32"? And HDCP 2.2?

[m0nkeyb0y]

I'm in the market for a new imac to replace my 2010, and debating between a 27 or 32" second monitor. At 27" you've got to use scaling to have it readable, so you're essentially using the higher DPI to create cleaner text. But at 32", you don't need to scale, so you're essentially getting much bigger usable desktop space, right?

Second, if my imac is Kaby Lake, external monitor is HDCP 2.2 compliant, and connected via an authorized USB-C cable, will Netflix finally stream in 4k?