Well, it's pratical, too..if I use a lowB, I need bigger cabinets, more power, etc.....
Plus I like the sound of a bass played high. Entwhistle did this to perfection, IMHO.
However, I have heard some bass players use that low B in a way I found appealing...Jimmy Haslip is one guy who really knows how to be selective with dropping those B-Bombs!
After hearing Jauqo III X's album, "the low c# theory", I would have to honestly say that I like it, but my opinion is that those super low basses are really different instruments entirely, then a bass guitar. They look the same, but the tones and textures they get are very far away from the standard flat wound p-bass sound that I love. It's like comparing a church organ to a fender Rhodes, IMHO.
Plus, I may be too ******** to remember that it's the B string, and not the E that i just hit...I find going back and forth on 4 to 5 string to be too much thinking!
I think for modern nu-metal, those lower ranges are great..really powerful, but shall I say almost too powerful?
Both Entwhistle and Chris Squire made great use of the instrument's upper ranges, and some great fusion and funk players from the 70's did as well. I think I like that sound better.
A D-tuner would be useful for some songs, though!