It sounds like another stupid computer game. For some it is, but I do not agree.

Flight simulation can be more than challenging. It is an extremely complex task to simulate a flight of an airplane under realistic settings.
Beginning with the flight plan, calculation of weight and balance, fuel, incorporating meteorological data and to understand what influence the yoke and all the buttons have on the flight dynamics.

The last version of Microsoft's Flight Simulator is incredible: It also features extremely realistic Air Traffic Control. flight simulation as close to reality as possible - doesn't matter if you are flying "good weather' VFR or by Instruments.

There are a whole lot of people out there producing wonderful plane models, most of them for free. If you are interested, check out Flightsim.com or Avsim, where you can find thousands of models, panels, flight plans and sound files for free.

Also check out my pages about real aviation.