McShot's - Number one for bile
The US is a particularly good example of this phenomenon. You ask someone where to go for lunch and they'll tell you that one place has great ribs, another gives you hot towels after the meal, a third does the most amazing Caesar salad and this last place has the best cheesecake. There isn't a single place which can be recommended across the board. Each establishment likes to be famous for one item, one speciality into which all the advertising dollars and creative effort is concentrated. It's more efficient this way, advertising and word of mouth bring the crowds and they'll all order the same thing. Makes it easy for the chef, the purchasers, the waitresses, everybody. You don't have to worry about the details or the garnish, just deliver on the one thing everybody expects and all else will be forgiven.
Of course, like Starbucks, SUVs and chronic obesity, all good things make the journey East. Take a look at this crazy shit from the UK.