So bitcoin is online money on your online wallet.Bitcoin is also cryptocurrency coin what means that bitcoin price is changing really much in short amount of time.Bitcoin is good to buy because when you change $ for bitcoin you can keep your bitcoins in your bitcoin wallet to grow because bitcoin is more and more popular.Also when you send money with bitcoin transaction fee is smaller than western union or any other processor where real mone is in use.Bitcoin money also cant be discovered by your country because bitcoin is anonymously.Also in some countries when we earn bitcoins we dont need to pay fees to our country for that but for real money which we earn in like example paypal we must pay fee which is really high and decreasing our earnings a lot.Bitcoin transactions are also faster and you dont need to verify your account with private informations to send or receive money on your bitcoin wallet.