That is a nice plasma cutter there!
Many advertise that you can do routing and plasma with their tables, I would have to say that you are probably looking at a machine that is meant mainly for plasma, but
could be used for a light amount of wood routing. This is not a poke at any company, it is merely my opinion.
The drive systems and linear bearings on a smaller table like a 4x4 may not be strong enough to support heavy duty router work. Before purchasing, you should really decide on how much you will run the table, and what you will be doing the majority of the time.
I would advise you to be wary of big flashy catalogs that might mislead you.
Those are made by people in marketing and advertising, who may or may not know
anything at all about what they are really selling.