I'm not a wig fan either, but I get it.
I hear you. If the audience for these gigs were 20-40 age group we'd ditch the wigs, but the club venues that host these tribute band shows in Australia are 40-80 age demographic, so it's as much a visual performance as playing the music authentically. We're competing against Abba, Motown, Eagles, Beatles and Neil Diamond tribute shows in this market niche, so the audiences expect to see costuming and wardrobe.