I read somewhere once that a water heater typically lives for abotu 11 years. However my parents had the same one for over 21 years and had no trouble until the end. We use tankless water heaters which conceptually should last almost forever as long as the water is not hard or you descale them regularly.
Long term airport parking is generally considered much cheaper and cost effective on the parking because the per day cost of this kind of parking is less than the per day cost of short term airport parking. Be it Las Vegas Airport parking or Houston Airport parking, almost all airports offer the option of long term airport parking.
Currently, over 20,000 parking spaces are available at the airport. These spaces are split between the Short Term Parking Garage, the Long Term Parking Garage, and the Economy Parking Garage. As of right now, there is an ongoing expansion of the Economy Parking Garages which is in its second phase of construction.