Where else but Vegas – poker machines in the airport. The airport makes around $40million in revenue per year from these machines and obviously the longer the delays at the airport the more the revenue. Other airports are also planning to introduce slot machines though in most cases it requires legislative change. Miami are planning about 1,000 slot machines which they expect to generate around $20million in revenue for the airport. Maryland also has legislation up to all them. I doubt it will be long before other airports join the trend.