Three have been demolished (Amway Arena, Charlotte Coliseum, and Miami Arena) and, two (Bradley Center and PowerBalancePavilion) are the subject of major renovations or replacement talks.
Or it can drastically reduce the available sources of revenue and threaten relocation, which is the current situation in Sacramento with PowerBalancePavilion (formerly known as Arco Arena).
Although not exactly state-of-the-art, the arena does have more than twice as many suites as the PowerBalancePavilion and attracts the the type of concerts and ancillary events Sacramento cannot get.