MtM, fixed or moving displays.
Moving spreads the pain.
Fixed fits in with everyone's calendar. Ensures continuity and expertise. You can spend on infrastructure - Finningley installed sceptic tanks - Waddo improved access roads etc.
Bringing in reinforcements happens, often from the training establishments. Main airfields are too lean to provide much. Reinforcement comes a huge cost in T&S as bases don't have spare accommodation. Gone are the days of busing willing recruits from Swinderby for the day.