A friend is a roofer. I argued often that he was putting far too much detail and data into his [free] quotes- [he built 2 roofing jobs for me and I make his bespoke roof windows]. He stopped when it came to light that at least two clients had used his detailed quotes to source cheaper labor and materials elsewhere - on the basis that all the planning work had already been done, they could source special offers from his lists and employ amateurs!
