Initial driving lessons, pilot training, Movies where you're sat inside the scenery. Virtual conferences, meetings, lectures, school lessons. Virtual strip clubs. Virtual weddings. The list is almost endless. If something can be done in VR, somebody will program it.
It's gonna be so massive and so addictive, I predict within ten years there'll be news stories about people dying in VR from malnutrition or heart failure and clinics specialising in VR addicition.