mlcorson wrote:
I have both, and I like having an option for a quick hack saw on
smaller less precise cuts. With my portable for example, I cut the end
off a 30lb CO2 tank yesterday. I could not have done that on my 4x6.
I'll bet if you looked again you could actually cut that tank on your
4x6 and I'll go further and say it could be a more accurate cut.

However there are cuts that aren't appropriate or require more
precision than the portable. YMMV
-Mike