Bitcoin is a coin that will eventually become more popular, and more and more people will learn about it every year.
In my own opinion bitcoin is hard to become obsolete because everyday the users of it are keep in increasing and increasing throughout the whole wide world. In fact there are many believers of it already because of the huge profit that they earn with their time and effort of investing on it. So it is really hard to get obsolete for a cryptocurrency like bitcoin that is already popular worldwide.