People says gold is better but my opinion is different.BITCOIN is much better than gold as it is a digital form of money by which gold can also be bought.It is much safer than gold as we don't have the fear of loosing it anyhow whereas gold can not be taken safely during traveling.But still people says that g0ld is better because it is considered so since beginning and it is available in physical form.

YES...If you want to enjoy your profit you may sell it.But there is nothing to panic so much as it does not drop to that extent.And also you can buy it later at low level, if you sell it.

YES, we could expect more years like 2017 in future of BITCOIN because still there are many people who did not get the chance to invest in BITCOIN. That's why i think there are many more years like 2017 still to come.

As we know that nowadays almost everyone is addicted to internet.One of the most common use of internet is online shopping which is preferred over shopping manually from the market.Dollar is the physical form of money whereas BITCOIN is only available on internet and is also safer,faster and more cheaper than dollar.It is the best option for any online transactions.Therefore, according to my opinion people should choose BITCOIN over other physical forms of money or currency.