Because this is the future :) More and more people start realizing it. Plus a lot of people make a lot of money on it. Our initial jackpot for example worth of 4 BTC which is something around $60K USD now, according to the average exchange rate. You are bying the ticket worth of $1.5 USD and you can hit the jackpot of 4 BTC worth of $60K USD, isn't it a great chance for anybody? That is why people talk about bitcoin, it makes our lives betters!