Most folks raise them, and up here in Maine we have a wonderful processor (I have never been there, I do my own birds) that most use, it takes one hour, you make an appt, bring your crated birds, and they tell you to meet them out back, when the birds are getting processed you place them in a ice filled cooler, I believe its $2 a bird at this particular place.
Don't judge folks that prefer to take their birds to an "executioner" (I thought it was cute- must be that New England humor) because when raising your own birds is so beneficial, you know what they have eaten-broiler feed with ground up animal protein or plant proteins, humanely and with dignity.
You cannot be sure of that when you purchase at a store, or eat at KFC (disgrace!). I do not soak in a brine, that making less sodium intake and that is important to our family.
So yes, the cost can be higher for these birds, but the rewards are greater then the cost.
Also, some folks have "Processing Parties" and they seem like great fun, you did good by posting here!
Good luck and happy chicken growin'