Virtual reality provides people without the ability to walk to actually experience running and walking, or playing a baseball game. It makes the impossible possible. It provides entertainment in many different forms, and it is being updated everyday. Now, you can interact with other people in a room and visit places you've never been before via things like Quicktime VR . You can tour a future home on your computer without the hassle of meeting a realtor and view homes before they are built.
Production studios can show people a whole movie set without building it.
There are many advantages and benefits of virtual reality. The possible downsides to virtual reality are that people will lose track of reality, and not interact with eachother outside of a virtual environment.