Hello again....since i want to know what is bitcoin for you...and what you think about anothers cryptocurrencies like ethereum,litecoin,dogecoin,eth classic,zcash,dashcoin,monero,golem and others...
There seems not much potential in other altcoins when compared to bitcoin but still there are some cryptocurrency like ETH which are widely used and sometimes more than BTC for example in south Africa but cannot be used to make profits but a small time earning and bitcoin remains the king of cryptocurrency.