Question about their amps

Hey y’all, I almost never see mics on their amps when they play live. Red rocks, this most recent tour, etc. am I missin something? I know Stu just got that new amp and looks like Joe and cookie use their hot rods, but never seen them with mics on em. What’s going on here???? Are the amps we see just backups and their real amps are hidden away or something? How do they do it? Thanks!!!!!