my 80s duo is backing tracks but without guitar and keys, as we both play them
There was a full band for a while that went out for 300 quid a gig. 75 quid each.
It was mostly live, we did use the occasional BT but then the drummer left so we put the drums on the BTs and carried on. now we get 100 quid each.
bands are charging much more now and pubs, largely, can't afford it, so have gone down the solo/duo thing
Frankly, I dont want to watch people sing to backing tracks, if they're playing guitar/bass/keys and using BT I think that's ok
I am very lucky to be an ok singer. I am confident that what I do is good. I know when I'm beaten too