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.
There is a 24-hour weekday time limit on parking in all BART lots (See Airport/Long Term Parking for an exception to this rule). Vehicles left in BART parking facilities for more than 24 hours will be subject to fine.