Mom was a meat packer at a butcher shop.Marinated meat is code for outdated meat.
If you havent,try making your own salad dressing,much cheaper and flavors cant be beat,also simple simple.Mrs has a little grinder mixer mini blender thing she uses almost exclusively for dressings.Her dressings are high on my list of things worth making.
Disagree on not buying boneless skinless chicken breasts,can find them cheaply on sale around here at least all the time.
Grind your own burger,yup,do it a couple times and NEVER will you buy ground beef again.