Also, I don't think the 36ers and Lightning want to play in an entertainment venue.
From memory, the 36ers were expected to play at the Entertainment Centre when it first opened but BASA opted to build their own facility, and even when Adelaide Arena was facing foreclosure recently, the 36ers were reluctant to move to the Entertainment Centre due to the costs of having to use a portable court and having home games scheduled around other events.
A multi-purpose sport venue that augments NetballSA Stadium, Adelaide Arena and Memorial Drive into one venue at the doorstep to Adelaide Oval would be fantastic. It could even be operated by the SMA (even if basketball, netball and tennis get board positions on the SMA) and make the Adelaide Oval precinct a true multi-purpose sport facility. It might also help the respective sport's bottom line. Could even have a retractable roof so tennis can still be outdoors and netball and basketball indoors.