All run by accountants in America. Occasionally they miss the memo's and let something magical through like the turbo barra, but they're quick to recover and hobble the good stuff by hiding it from the world and drawing attention to sticker specials. The McDonalds Happy Meal formula works so well and is so easy to cater for - why would they want to give customers a corner shop burger with the lot option where some want beetroot, some hate onion or egg and a couple might (gasp) ask for pineapple rings? One size fits all is the way it's going. Global front end style across all model ffs. One day colour choice will be the only option - and even that will be only a small range.