In response to post #4332 from cgmccary:
You will have to check with your state's Ag department to find out how many birds you can sell butchered on farm before having to be USDA inspected. Most states (including mine, Idaho) use the standard USDA exemption of up to 1000 bird units... 1 chicken = one bird unit, one turkey = 4 bird units for example. But some states go as high as 10,000 bird units, and some states may not allow ANY (a few years ago, Idaho did not allow it at all). However, you can get around that last by selling the birds at the same per-pound price whether live or processed, and doing the processing as a "free service" to the customer. Some ethnic/religious groups insist on buying their birds live anyway and processing themselves. You would make more money per bird that way, because they're paying the same per-pound price for feathers and guts.
Your state may also have different laws for selling the birds whole and freshly butchered as opposed to frozen and/or cut up, i.e. it may be okay to sell fresh processed but if frozen or cut up must be USDA inspected.
For prices in your area check craigslist, farmers markets, localharvest, etc. In my area they wouldn't go for enough to make it worthwhile (maybe $2.50/lb), but in western Oregon they go for $4/lb or more. In my area people think they should only have to pay $1.75/dz for farm fresh eggs, in western Oregon they are $5/dz.
I've been raising all our family table chickens for some years now; Cornish X at first, but the past two years I've had Too Many traditional dual-purpose breed cockerels (Welsumer, Wyandotte, Marans) and did not raise any CX for myself. I just raised 50 CX as a favor for coworkers for cost but don't want to do it again... it was too much extra daily work, and even though they helped butcher it still took basically an 8 hour day set-up to put-away because I don't have a dedicated butchering area. The CX are so disgusting... yeah they're meaty, but they're pooping machines and even moving pens twice a day they left a carpet of poop behind every time. I cannot free range, we have coyotes. Even cutting their feed with scratch, I lost 5 of 51 to flip.
Got rid of the Marans and Wyandottes (too slow growing and not great egg producers either), keeping the Welsumers for eggs, and just obtained a really nice Buckeye trio to experiment with. I may (or not) try some Freedom Rangers next year, and/or experiment with crossing the Buckeyes with Barred Rocks and/or Dark Cornish as some other breeders are doing for faster growing table birds.