I play 90% of my notes on the first six or seven frets. Mostly on the E and A strings.
I play 4 and 6 string basses.
More than six strings is just over the top for me. Besides a Chapman Stick I hate basses with more than 6 strings.
I've got basses with 5 and 6 strings. Even though I played only 4 strings for years I still find them limiting. I've got a couple 7 string basses but I don't play them much. Yes, they are heavy with wide necks and are about my limit of a wide neck. But the problem is really ME. When I'm playing them I keep looking at the extra string wondering what I should be playing on it? Clearly some woodshed time is needed for me to figure that out. At present I just feel sort of helpless about it. I do know what to play on a 8 string bass. I've never been into tapping so a chapman stick or more than 7 strings is pretty much nothing I can deal with.
22-24 fret
4 strings, 20 frets is the exact range necessary to play a full 2 octaves in every key. Works for me!