Think about cost and convenience, taste and food value. Shredded cheese or a whole piece. Cake and bread mixes or ready to eat products. They cost more than the ingredients to make them but they make money sense when you're in a hurry. Chicken pieces or a whole chicken.
Simple meat cutting jobs are very costly.
Check the price per kg. of a whole chicken versus cut up pieces and then make your choice. Buy more and save. There is little to lose and a lot to gain by trying a store brand or no name product, at least once. Of course buying the weekly specials and using coupons also saves you money. But, keep in mind that coupons and specials still require I comparison shopping and only save you money if they are items you want and will use.