The current price of Bitcoin is very high because of China's large pump into buying Bitcoins and the fall in value of Yuan. Just today bloomberg stated that China is again preparing to impose curb or Capital controls on Bitcoin by restricting domestic exchanges on sending bitcoins abroad and setting of quotas on how much can be sent. Considering this the price of Bitcoin may stand a chance to fall again.
As expected countries does wanna tax and control bitcoin, something they cant do, if they buy all the bitcoins they will just show how they had fail, decentralization is what makes and make bitcoin being soo popular and has a big value. This is why bitcoin must keep not being recognized as currency, with such status all countries will tax bitcoiners, something we are free to do now.