I don't know why people are only considering Bitcoin. Yes, it really is a good one to trade with if you have the money for it. There are other, new ones that are really promising like TRON. They are cheap to start with and even if it does not succeed, you will not be losing much. Go to https://investotrend.com/ and you can find a really good article on new promising cryptocurrencies which can bring you some money in the future. Personally I do not have the money to buy bitcoin now and it is still fun to trade with the cheaper ones.