Earrings are a nice quick alternative to spending hours on a necklace. They usually work up fairly quickly — in the process I sometimes discover a design or a technique I can work into a necklace or bracelet. That’s always a plus.
Besides, earrings are just fun to make. You can play with neat shapes and colours and if the world isn’t going according to your plan, you can pound the heck out of some copper wire. 😉