Last summer, I took my son to an event that had a garage band do covers from the 50s and 60s. These guys did not have edge to make a living from their music. Nor were they interested in finding that edge with more practice and hitting the road. But they sure had fun. And I enjoyed listening to them. It was all about love of music and having a great hobby to complement whatever non-glorious job they have to do to make a living.
When you mentioned the Christian spectacles requiring semi-trucks, that to me suggests people who don’t want to get a real job. Of course, their act needs to be marketed such that to pay for those semi-trucks to move the act from town to town, thereby taking away family time.
But couldn’t the worship just entail a few “garage” musicians to get the job done?
No, God needs a spectacle, right?