The copier lasts longer when less copies are made 22. Students think more about what they are copying and even take notes if they pay for their own copies. It is very expensive to add a coin-op box. Use an honor box or just collect at the circulation desk. You will spend all your time making change.
Repairs are a costly nuisance.
Our coin-op broke, but it was not replaced because it didn't generate enough revenue to make it worth while. Consider the noise of coins entering the coin-op and when change is returned. Librarians having to make change is a nuisance. Complaints that the machine make the wrong change. It prevents unauthorized use by outside groups using the LMC after hours.