I see no reason to get rid of a perfectly good and comfortable riding bicycle (or bicycles) just because there's a new braking system out there. If I can't ride with the cool kids because I don't have the latest disc brake technology, then so be it.
I'll wait for the next brake-thru in bicycle braking technology. Maybe a magnetic system based on a blended composite of carbon fiber & metal alloys rims incorporating some type of accident avoiding technology that produces more braking power than what you can achieve by squeezing a brake lever (kind of a 'fusion reaction' between the lever and brake caliper)?