For me it's easier to transform section/elevation form 3D to 2D, and to complete the drawing in 2D (add new hatches, lines, description, finishes). In firm where I work for, don't put too much value on section/elevation 3D.
Rarely I saved a few pictures from a 3D building.
People do this (I used to as well) because it seems like it is easier, and most people start out learning 2D, and that's what they stick with. It takes some time to learn how to get 3D drawings to look good like a 2D drawing can, but like I said before, it is definitely worth it. We put in the time and it's paying off. I also think you have to go 3D just to be competitive. A lot of firms now are, and in a few years, a lot more will be.
If a client wants a 3D model with fly-throughs and renderings, you'll be S.O.L.
