5. Tesla music-streaming would return the company to a focus on its vehicles.

Tesla can be overly visionary. What was a plucky electric car company is now a transportation-energy conglomerate with a vehicle business, a battery business, a solar business, a power storage business, and a software business.

It all fits together — Musk wants to accelerate humanity's departure from the fossil-fuel era — but often the company loses focus on the cars, which are the core drivers of Tesla's future.

A music streaming business would be all about creating a better in-vehicle experience and would consequently refocus Tesla on this core undertaking.