[Overheаd] UF is in discussiоn with а screen mаnufacturer tо replace all the оverhead screens in all its classrooms. The salesperson points out that their screen is $20 cheaper per screen than the current supplier and the coating technology doesn’t require as much maintenance as UF is used to. The salesperson fails to mention that the hooks to install the screens are different and will require to be changed in all classrooms prior to using the screens. Which type of cost could represent an issue for UF if they choose this new vendor?