Here's the bottom line:
If you only count the costs of buying a chick and feeding it to finish weight and processing it yourself, you probably spent about $6 a bird for a cornish rock hybrid that you raise to seven weeks of age.
If you count the amortized costs of housing the bird, providing water, electricity and the miscellaneous equipment associated with raising and processing a small flock of chickens, it probably costs you $9 a bird.
If you impute your labor costs at minimum wage, it probably cost you $15 a bird.
If you allocate the costs of your land, taxes, insurance, vehicle use, financing costs, etc., it probably cost you $20 a bird.
Take your pick. These are round numbers and may be a little off but they serve to illustrate my point.
Any of these methodologies is 'correct' in some sense, although taking into account
all the costs gives you an accurate picture of how well you're competing against a true commercial operation where they have to measure these costs to produce the broiler you find in your supermarket (plus other costs you're not incurring such as marketing and advertising). The huge economies of scale that commercial producers enjoy allow them to sell at wholesale for 75¢ a pound the same chicken you're raising for almost $7 a pound.
My advice is: Don't raise chickens if you're doing it to save money. If you 1) just like raising chickens, 2) want to raise healthier and happier birds, 3) want to eat better-tasting chicken meat, or 4) enjoy being self-sufficient and sticking it to The Man, then by all means raise your own meat birds. These are all great reasons to keep raising meat birds.
I wouldn't kid yourself that it can be justified on purely a financial basis. You can never compete on price against an industry that raised
36.9 BILLION pounds of broilers last year:
http://www.ers.usda.gov/News/broilercoverage.htm