I figured that the cost/benefit would be a pretty hard sell. At the time I remember discussing it with my boss (Airport Manager amongst his other hats) , and he remarked that he would never be able to recover the costs if user pays was applied, did not want a bar of the potential risks/liabilities, and that it was typical government thinking....decide a service was not warranted and cease providing it, and then come out and say here's a great idea and expect someone else to pay for it.