Bitcoin is a coin worth investing for as it has great potential in the future, there is a large investor community that cares about it.
Bitcoin is indeed has a lot of potential in the future and with bitcoin it is very possible right now to become successful someday with our investment and that is by putting money in bitcoin and holding it for a long time. The bitcoin might have some up and downs but it is pretty normal and i thin that if you really believed in potential of bitcoin in the future then you know what to do which is just hold.
As you said the price swing in bitcoin is very high but it is normal in bitcoin the bitcoin will recover if there a price drop and it is always happening while we saw the history of bitcoin.
The most important thing to understand about bitcoin is that the bitcoin has great potential in future the value of the bitcoin will be high in coming years so it is a smart way to invest on bitcoin than other investment like gold,or stocks.Because the price growth of bitcoin is very high when compared to other investments.