The low notes on guitar simply sound quite different from the low notes on bass, mostly because of the choice of string gauge, scale length, pickup design and a

The low notes on guitar simply sound quite different from the low notes on bass, mostly because of the choice of string gauge, scale length, pickup design and amplifiers. Some genres such as progressive metal & djent find those sounds very useful! For what it's worth, I agree with you, I find the bass frequencies on even standard-range guitars to not be all that useful. In my own music productions, that part of the spectrum belongs almost entirely to the kick drum & bass guitar. However, once you cut out the low-end mud, the rest of the guitar sounds very good!