I’ve only ever seen tribute bands accidentally - like by going into a pub and they’re there already playing. Bands in pubs tend to be ear splittingly loud, so unless you’ve gone specifically to see the band, it makes any form of conversation almost impossible. So unless they’re really really good, it’s not a welcome addition to my night out. Also, tribute bands tend to be of mainstream rock/pop bands from the 70s/80s - not my cup of tea. I had the misfortune to catch an AC/DC tribute band in a pub once. It was free. Only because, if they’d charged actually money for the experience they could’ve been arrested under The Trades Descriptions Act.