It's what people pay for. They want wax, I give them wax. It isn't about cutting corners, but I don't give out free polishing just for fun. Why clay then? Because a clayed surface makes a beautiful base for wax, and dragging a wax applicator around a non-clayed surface doesn't strike my fancy, particularly on rocker panels.
Listen, you folks all live in an area where people have heard of detailing. My repeat customers get curious and go a little further each time, but it takes a while to educate an entire city where the only other shop in town sends cars out with holograms and buffing marks with pride. Any time I say "polish" to a customer, they say, "no, Buddy Wasisname went to that place on St. Peter's Road and it looked awful two weeks later. I just wanted to make it a little shiny and keep the car a little longer. See you later, goodbye."
Now the thread has brought up an idea: clay&lube->polish w/o mf wipe off. Lovely, I will try it, and save me and my customers some time and money. It just isn't a cure all, and I've seen clay streaks on that black Kia not come out without significant work.
Not all paint is created equal. Not all customers and economies are either.