When I started seriously gigging it was the late eighties and early nineties. Dance music, specifically electric/house/d'n'b etc was all the thing.
The effects of musical tastes cahange and vary. At that time I couldn't get a repeat booking (maybe 5% rebooking rate) most people didn't want to hear someone sitting playing the guitar reasonably well and accompanying themselves singing. Everyone wanted backing tracks. Just drums and electric bass, it fills things out adding to your sound - rebooking rate 98%.
But it got to the point where I was on auto pilot without having to think what I was playing/singing, I was thinking about how long the journey home would take, what was to eat at home, etc.
I switched off, I stopped gigging.
Now there is a good market of small venues whose customers will appreciate a decent solo performer.
Will I go back to backing tracks? I might, the money would have to be right and I would have to be able to make my own rather than get them from my agent. I would rather be paid proportionally for my experience by people who enjoy what I do.
Cameron, Mickey and anyone for whom backing tracks will improve their practising or help them make a buck ('s long's you pay yer dues!) good luck and go for it.