I will admit its a subjective ideal, but a six string, 7 or even 9 string bass has both the lows of a 4 string and highs of guitar. Its tonel range is really realized when utilizing techniques like tapping or sweeping arpeggios etc. Please at least look into the many fantastic bass players out there, your missing out! And dont get me wrong i think the guitar is a superb instrument! To deny that would be insane since it practically shaped modern pop music.