They can be eaten as well as their eggs. When I had them it was because they are an unusual bird and interesting to have around. And yes, they are extremely noisy. Not something to have if there are neighbors close by.
Edited by nchls school - 1/22/16 at 6:10am
The number one reason posted on BYC is for tick control.
They are excellent eating and some prefer their eggs over chicken eggs.
Some keep them for the amusement they provide and some make the claim that they are good watchdogs. They are not actually good watchdogs because most of the time they make alarms for reasons known only to them and continue on with the alarm long after they have forgotten what they were alarming about.