The material does abrade and will wear out with heavy usage over time. We have a test unit that has done at least a thousand bags and is barely worn. We'll keep you posted. If a crew of 5 can do the work of ten, or ten of twenty, then that is half the cost to the taxpayers. That does matter, and we should care.
More people means more to manage and more confusion.
Less people means more efficient, less management and significant cost savings. Remember also that more bags produced in less time can mean saving thousands or millions in potential property damage and possibly save lives. Even if people are volunteers, the GoBagger can make a huge difference. Price of the unit does not matter if it saves time, per the previous question and answer. Time is money, and in an emergency, saving time means saving lives, saving potential millions in property damage.