I am worried about its future. I think it is not bright as we thing. Many countries like china, Bangladesh, Bolivia, Malaysia, etc ban it. The main reason behind it ban is economy threat which is created by Bitcoin miner's. Bitcoin miner's produce more coin and distribute and exchange it with other currency randomly. Because of decentralized nature no single person or authority control it. This thing put an bad impression on an country economy by decreasing the price of real currency of that country. Israel government ban it because in their country Bitcoin associated with many criminal activity.