virtual reality vs. the real thing

So a couple of weeks ago my brothers finally bought a Wii. The we has many games that are sport related. There is tennis, golf, baseball, boxing, and bowling, with these games you can either really get into playing them or just sit on the couch. So why is it that many people would rather sit on the couch and play a fake tennis game rather than playing the real thing. It think that the number one reason is that people are lazy and don't want to get off the couch. It is so much harder to get up and ready to play a game rather then touching a few buttons on the remote. Also some people aren't physically capable to go out and play a real game of tennis. So they next best thing is a video game. Another thing about video games is that you can play a game all by yourself. When you play baseball on the wii you don't need a whole baseball team. All you need is the remote. I can see why people would rather play video games then go out side and play, but personally I think I will stay with the real thing.