When I lived in a rural area on septic and well, my electric bill was often under $200 in the summer, running AC fairly heavily, and taking care of ~6 dense garden beds full of veggies for ~6 months... and regularly watering 1 acre of grass to keep it from drying too much. We even had a timer to auto-water the garden and parts of the lawn... We'd even let it run overnight on a few occasions (needing to water, but coming home very late)
I hardly considered water a costly resource
On "city" water now in suburbs, I followed a similar pattern for grass on a 1/4 acre lot, and heavily watered the lawn one month, and I had a $300 water & sewer bill -- on top of my $100 electric bill.
Water went from being something I hardly considered to something I am far more careful about 'wasting'.