Seriously........Why does one need a jointer??

I have made a beautiful desk, and other furniture that have stood up to over
20 years of my abuse. I always buy my rough lumber with one side cut
straight, and I take it home to plane, and then rip on my "General"
contractors table saw. I use old fashioned pipe clamps to hold my boards in
place while gluing. When I take the boards to a local saw shop for sanding
even,. they always comment on how straight and even they are ( and i don't
use any type of biscuits or doweling). I will purchase a jointer if u can
tell me what benefits there are in having one. I have wondered this for
quite some years, and am hoping someone can help me. Thanks in advance.


--
Roger J. Matye

A woman is just a woman, but a good cigar is a smoke !
.......... Rudyard Kipling