Technically all the other paper currencies like EURO, USD should be limited as well in order to preserve their value, but due to economical problems some countries tend to print more which leads to inflation which means their currency loses some of its value such is the case of countries like Zimbabwe and currently Argentina and that is all because they have the possibility and the power to print it, but with the bitcoin there is no such thing as creating more bitcoin we can't do that the network already has a limited supply that can't be copied or changed and that is what makes bitcoin special and that what makes its price always going up.