The dealerships don't use paper WSMs anymore. They get dirty, torn, misplaced etc. Any change or improvement made to the unit requires a separate manual for the updated information or correction.
If a field service tech took the manual, no one had access until it was brought back.
We all now use the pdf version which is kept current with updates, and the manual is searchable for specifics. I can print a page or two if desired but I have absolutely no desire to go back to those paper copies at all.
We still have 3 large racks of the old paper WSMs from years past taking up space in the shop until they get tossed into the paper recyclable bin.