Yes for now.
This will get rid of the price shoppers and the ones looking for the diognosis then try and do the repair themselves. Landlords looking for the cheapest price.
Do you do free estimates for complete replacements?
I almost really like this and thought about doing something similar but I sell the majority of repair calls. Most are obvious though. The $49 would definitely make me feel better during an investigation in to the back of a 24" high attic.