Keep in mind that at least one of the sims offers a series of lessons within it. The lessons teach you different maneuvers. They're quite useful to learn to do things, or just to try to do things you'd never consider trying with your good model airplane.

It was an amazing find for a buddy of mine who recently got G4. He has been basically just a "bore holes in the sky" kind of flyer for a couple of years now. He thought a snap roll was something only the gods of precision flying would be able to do. He saw the "Training" drop down menu and was looking at the list of lessons and saw "snap roll and half snaps" and decided to watch the lesson. When he saw the stick movements on screen, with the airplane in action, and Frank Knoll doing the voice over he was amazed. It's a fairly easy to do bit of stick twiddling. When we were talking about G4 at the field the other day, his story came out about his discovery of the lessons. Seems he didn't know about them when he got G4.

So there is an extra value buried in some of the sims.