Nope. Mine are about 4-5 feet tall and have not fruited yet either. Maybe the ones that are for sale at nurseries tend to be all females, and they require a male to pollinate them? I'm not sure if this tree is dioecious or monoecious. According to Wikipedia, "Regular watering is essential while fruit is maturing" and "Summer temperatures above 90 °F (32 °C) may also have an adverse effect upon fruit set."
As a last resort, I have found the fruits for sale at Rouses grocery stores in New Orleans.