I am also firmly in the physical keyboard camp, and I constantly hear that argument that screens are so big now,
I'm also in the physical keyboard camp. Physical KB's have one huge advantage that cannot be negated by big screens. You can type on them without looking at the keys.
Sadly it's very difficult to find a phone that has a physical KB and even though larger screens have helped its not really the same as using a physical KB as I'm constantly having to watch what letters I press rather than the output on the screen. You simply cant touch type on an on screen keyboard.
Getting a physical USB KB for my Nexus 7 was one of the best $12 I've spent in recent years.