Apart from the obvious advantages like wet weather braking, the main reason is probably not having to replace rims. I would never buy 💷💷💷 rims that I know will wear out over a year or so, but if there is no brake wear to worry about then why not?
Also, the weight isn't a problem for me, I weigh so little. The aesthetics are no worse than rim brakes and prices will drop ¯_(ツ)_/¯
Apart from the obvious advantages like wet weather braking, the main reason is probably not having to replace rims. I would never buy 💷💷💷 rims that I know will wear out over a year or so, but if there is no brake wear to worry about then why not?
Also, the weight isn't a problem for me, I weigh so little. The aesthetics are no worse than rim brakes and prices will drop ¯_(ツ)_/¯