After soccer, badminton is the world's most popular sport. It is very popular in the crowded countries of Southeast Asia and Europe where space for larger sport facilities is at a premium. The equipment for badminton is very inexpensive. A decent light weight metal racquet suitable for most players costs $35-$60. Plastic birds cost $1 each and can last for many hours of play.
The game seems so simple but once you start playing, you will keep wanting to try new shots, different angles, better foot work and eventually, will put all these together to deceive your opponent with surprise shots.
This is a game that you can keep playing from age 8 to 80.