It is surprising that given the growth of the area there are no overnights in MCY.
Having said that, accommodation for crews has proven troublesome for VA, even in more populated places. Transport and catering would have to be contracted, engineering organised, and to be honest, there aren't even enough crews to cover current flying.
I must say though, if the Sunny Coast was serious about attracting more frequency for its residence, they should be doing more to upgrade the airport to accomodate it.
It is sadly lacking in a lot of areas!