Brontide - Absolutely! My local produce store had point of layers for $15ea yesterday. I was thinking about it this morning - currently I am getting 2 eggs a day, soon I will be getting 4. The chooks get all of my scraps, a few treats (cheap canned cat food) once or twice a week free range all day and also have proper layer mash. The mash costs $18 for a 20kg bag which lasts around 2-3 months. Factor in a few dollars here and there for worming and other stuff - shellgrit, etc.
Comparing with how much it costs to buy a dozen free range eggs, because I just can't justify cage eggs if possible - $5-6/dozen. I am getting over a dozen a week currently, soon over 2 dozen - at a couple of $ per week for food! Not to mention the joy of having them - they are such characters.

I am a member of an Aussie backyard chook forum too - bit passionate about getting others into keeping chookies!