Home of: The Florida Panthers (NHL)
Cost of naming rights: $2.2 million a year
The Panthers thought they'd get a decent ride out of National when the company bought their arena's naming rights in 1999. It's just a shame National had to hand the rights back in 2002 without filling the tank. National's parent company ANC Rental just wasn't built for that kind of mileage. It was a spinoff of another company, AutoNation, and struggled on its own despite having both the National and Alamo rental brands in its stable. By 2002, ANC was bankrupt and the Panthers had sold their Sunrise, Fla., building's naming rights to BankAtlantic ( BBX).