Just came here to say that many folks (producers, promoters, venue owners, booking agents) hear with their eyes, so they think just because a bass has a few extra notes in the low register, it will give a deeper/more impressive sound.
If that is the case, a 5-string would potentially make a better impression on these types of people.
If that is the case, a 5-string would potentially make a better impression on these types of people.