I saw your post on another thread and thought I'd answer it in a new thread.
Airbrush makeup is 110% worth the money. I took my bridals the first week in August with 104 degree heat and had my makeup airbrushed. I sweated like a sick pig and even that night the makeup looked as fresh as when she put it on.
You'll hear people say that it feels heavy. It doesn't feel heavy or cakey at all. On a day to day basis I wear mineral powder, blush, and mascara and the airbrush didn't feel bad at all compared to what I typically wear.
I'm totally sold on it. I'm sure others will chime in too! HTH!