I've use bitcoin to buy computers, gold, silver, and various collectibles on this forum. It is very useful if you know how to spend it.
The real usage of bitcoin is that you can use it to buy the things that you want and you can also use it in different kind of transaction like paying bills, shopping online and many more. Now a day bitcoin is very useful because businessman use it their business to get much profit. Furthermore, having bitcoin will help you to provide all your need in your daily life.