“Which market segment is the one that is totally saturated with digital signage five years from now? (Is there a market where the gold rush is over and every new opportunity has been already taken?)”
I don’t know if any particular market will be totally saturated in five years, but I expect to see a noticeable and continued growth in the number of digital menu boards in the market, both indoor and drive-thru (everything from coffee and QSR to movie theaters and other entertainment venues). I would also expect a continued growth of indoor and outdoor screens related to transit and transportation.