Not that long ago Pt Cook had some good regular displays from the Mustang, Kityhawk and occasional visit of a Spitfire as well as the Iskra and DC-3, Harvards, Moths and anything else which was airworthy in the local area, the Catalina made at least one visit for a display. Unfortunately I've not been able to catch a recent display so am unsure as to what is being flown these days. The Roullettes also made occasional appearances and rarely an F18 would do a routine (but not land). Most of the flying displays were preceded by a Q & A session with the flying pilot at the front of the museum.
The static displays are well set up in the main hangar but the museum does need more space to expand, the second hangar needs to be walk through to be able to get up close to the machines. As was stated before the outside aircraft have been coated and are protected from the elements, without this they would corrode away in no time with the location of the field.
Have to agree some sort of kiosk or food van should be allowed to trade especially when the displays are organised.