Yeah, that's a valid point. In a breakroom there is a commons and unless there's someone who maintains the commons it will get dirty and the refirgerator will get filled with rotting crap. Keurig side steps that by not needing cleaning or messy supplies. Just add paper cups and you don't even need a dishwasher.
Office break rooms solve this by having bottles of Odwalla and the like in the drinks fridge along with all the other drinks. Juicero is ostensibly fresher but, as the demonstration shows, it's really not and the quality is the same as any other cold pressed juice.