Trust me. The bail forming pliers is one tool you will use again and again. Not only can you use it to make the stock items like ear wires and clasps, the pliers can also be used for all sorts of design elements. One great example is this tutorial for versatile funky pendants by Gayle Bird.
The unequal barrel sizes of the pliers helps form different sized loops. The tutorial is particularly forgiving as you can do as many wire loops and turns as you like.