Despite the fact that unless you have a 12" Unisaw saw, you won't be _ripping_ "4x4 material" in one pass either (like a bandsaw will), what piece of furniture have you seen lately that requires ripping "4x4 material"? ;)
Besides, pick up any furniture catalog, you know - those things that seem to come twice in the mail everyday - and you'll notice that most furniture, relative to cabinetry, has one design feature in common ... curved components.
You can't easily cut curves on a table saw, but a bandsaw excels at it, and a top notch bandsaw will "rip" much thicker material than most table saws ...
... just ask any sawmill owner. :)
I would venture to say that any fine furniture maker worthy of the name, who was forced to make a choice between a table saw and a bandsaw, would choose the bandsaw without question.
IMO, and with the advent of the track saw, you can do without a table saw if you must make a choice; and which one you purchase as a mandatory tool for your shop should be based on the preponderance of the type of work you do.
That notwithstanding, you would have to pry _my_ Unisaw from my cold dead hands! :)