“Do you have a plan in place if your display manufacturer either goes out of business or quits providing certain parts?”
This was an experience we had early on in our digital signage deployments. A display would go out, and we would have no option but to purchase the same thing as the model changed. It’s changed the way we choose our displays, and one of the major reasons why we’ve gone towards working with an integrator, who takes care of that for us. We also ensure we have spare parts in multiple quantities, to deal with parts and displays failing over time.
This is something that one must take into consideration when creating the project plan for any digital signage installation. And if not, the lifespan of the installation will only be as good as the life of any of the initial parts and pieces themselves.