Bitcoin is a cryptocurrency that can convert to other currencies. It is good investment today because the value of bitcoin is increasing.
In addition; There were allot of ways to earn bitcoin. The good news is that if you're willing to put an effort, you can achieve a nice earnings online.
Yes that's the reason why everyone is interested in bitcoins. Everyone is investing in bitcoins because of its value that is increasing periodically and because of that the demand in the market is keep on growing everyday.