There are lots of Altcoins that have potential to be used. It is just that we are mainly focusing our eyes into Bitcoin because it is the most popular and most outstanding cryptocurrency of all time that is why it seems Altcoins are being set aside and only being noticed when the price of Bitcoin is struggling into down fall. Also, even there are lots of potential Altcoins, we are being blind of the concept that potential coins must have great amount when it comes to price which is just a one factor because for me a potential coin has a gopd price and useful in a sense that many people are raising the demand not just because of price but also its usage. The top ranked cryptocurrencies are mostly made up of potential coins so I can say that potential Altcoins do exist which can be useful in everyday life basis. Now the use of it depends on how we will use it that will suit our needs.