I started riding in 1984, and up until 2012 I never had music on the bike. I was one of the Harley guys with the CHiPs helmet, whose passenger had to yell in his ear if she needed to tell me something. Rode across the US twice on that Harley, no music, no intercom, nothing.
Then I bought a V-Strom in 2012 and, along with it, went over to the full face helmet with an intercom system that bluetooth linked with my phone, and now I can't imagine riding without music and the ability to communicate easily with a passenger. I don't find it to be a distraction at all, and if my Sena broke down during a ride, I'd probably have to find a well stocked bike shop and buy another one.