Shoalzie
Trust me!
Have to be able to run the stadium both nights
I know...just fantasy booking.
I'll be that guy and reference Wrestle Kingdom. Those shows are long but they're basically title matches. All the other bigger touring shows have multiple nights where they put different title matches on as the main event.
If they'd actually push more than a handful of stars, they could conceivably have enough star power to run multiple nights at a venue with different main events. Go back to arena shows and see if you can sell out multiple nights rather then run a f***in' football stadium for a 6 hour show.