Bitcoin has risen its price from the start, which was $0.08 per coin until now which is $14912.
today, I was reading a post on
CoinBazar724.com which was directed from cointelegraph.com saying that
BTC may reach to even $17k!!!
Do you think this is possible?
What made you think that this is impossible to happen?look at the recent pump that Bitcoin Hit $15,700+ in value so meaning that we are
moving closer to that $17,000 that you are asking.
and also remember that we are still in Halving year so many things may change overnight,try not to expect too much but at least look for positive things
since BTC is not remained too much, some people say it may even reach $100k!!
in this manner, do you think it is worth the risk to buy bitcoin? 
If you are not in a Hurry?then yes Bitcoin is worth the risk,the only problem we may have is when we are investing money from our budget to buy foods
this will make us decide wrongly and may come to multiple losses.
Because the Great advise of all time is "Invest the amount you can afford to lose"