I agree that MS FS and other PC graphics are better than those found in many simulators, but graphics quality isn't the whole story...especially for night/IMC operations. A full-motion simulator with a decent flight model, vibration, noise, a proper representation of the relevant type's cockpit and some kind of air traffic control enhance the illusion of reality and increase the background stress levels on the crew. These don't come cheap. Nor does an experienced and competent instructor. You can make do without motion, which reduces the cost, but the simulator is less effective at replicating emergencies such as tail rotor failures and control malfunctions. I agree that box - ticking emergencies training is of limited value. Fewer malfunctions taken through to their conclusion, or at least until the crew has made its decisions are, in my experience, of far greater value. Quality simulator is expensive....and invaluable.