I've clearly missed something but what is attraction of miners that a municipality would offer any tax breaks at all? (assuming those are property type taxes as

I've clearly missed something but what is attraction of miners that a municipality would offer any tax breaks at all? (assuming those are property type taxes as there would be no sales tax) As you point out, at the high end it may be 100 jobs, I suspect probably far less are needed to mind the data/mining center?