But, my music/radio's on the phone
Don't see much of a difference between looking down at the radio console, or glancing at my phone.
Obviously, both shouldn't be done in dense traffic, or distract you from the road for more than 2 seconds, unless you're stopped.
With integration of the phone into the car becoming more mainstream, the two actions would become one and the same anyway. But that's an issue for another thread.
As for bikes, I think it's the same as for cars. Few people appreciate a light car these days, and instead prefer comfort or raw power.
Of course, from utilitarian standpoint, scooters are simply better, more accessible and cheaper than most bikes. Which is why in Europe I think they are around 50% of the motorized two-wheeled vehicles on the road, and probably ahead by vehicle kilometers, since they're more routinely in commuter and delivery service, while bikes tend to be week-end toys - and rightly so.
Still doesn't explain why so many people get big bikes.
A cruiser bike is cheaper than a convertible, I suppose, but I'd still get the latter over the former. A sports bike should be light first, powerful second, or you're constantly at work getting that mass around corners, and getting it stopped. Doesn't sound like fun, even if you have enough power to pop a wheelie at 100mph. Supermotards are at least kind of sticking to those principles, especially because they have a genuine advantage to a car, in being designed to go relatively fast off the tarmac. Enduros are enduros, but I get the feeling that their following has reduced a lot in recent times. At least the exposure has been slightly reduced. And they're pretty useless on the road...
Well, I suppose "bigger is better" is still the driving force of the vehicle market in many place of the world.