When you are doing a free demo, how much are do you clean?One parking stall?One section of a gas stations islands?In front of a stores entrance?How much do you do and why?
So I guess that Demos are not advantageous given the return or maybe aggravation.
****Demo's are very effective and a great selling tool. Don't listen to people that say otherwise.
You'll figure out that some places are not worth your demo time though because they would never buy anyway.
Only demo for qualified customers.