Well if everybody is charged for rescue, you won't have a debate about to charge or not to charge. It can be a up front system like Denali or afterwards by the user or his insurance like in Switzerland. You can determine the fee by the local park, why bother with standardising? The cost certainly aren’t ‘t.

Rescue has to be paid one or the other way. I’m currently seeing the effect of government paid services and the budgets cuts; SAR helicopter being removed from service, training cycles slowed by 1/3, medical units completely removed, fire engines being replaced by ‘rapid intervention vehicles’ (1/3 of the crew and far less capability), extending write off periods of equipment, etc. I would rather have a paid rescue service than no service.