Hi guys
For me playing 5 string is not so much about having an extended range. It' s only 5 notes.
The 5th string allows me to play with less position changes. For me that' s the thing about playing 5ers!...
This is "the thing" for me also. A five allows me to play across the neck more-so than up and down the neck. I also think most basses sound better when not having to play so close to the nut.
I used to have two sixes, but dropped to one. I found I like to have a G up top for chording because that's what's burned into my brainstem.