braided hose brake lines

[Simon.Pieman]

One of the reasons manufacturers go with rubber hoses even on thier high end kit is that their bikes are sometimes bought by fools with no skill, experience or training. These are the sort of people who are more likely to grab at the brakes and so have a fractionally better chance of survivng if the breaks are soggy and slow to grip. 

No manufacturer would use that logic. From both an engineering and marketing view it's doesn't make any sense.