For me, btc is money a digital currency with the access of internet. Like i said it is money. So through bitcoin you can buy many thing that youre needed especially in financial aspect. You can also buy your wants for example gadgets and shoes. But btc is not only a way of spending. It has also a part that you can earn money through joining in a particular signature campaign which can earn btc by posting in their required thread. Also by investing a particular business in this site.