Futurama Fry

It's down to marketing recognition.
Walk through a supermarket and look at the shelves, and you will probably be able to recognize what's on the shelves from a distance, even spotting special brands.
So people who want lemonade also needs to recognize it for what it is, and if it's not lemonade colored they won't recognize it and then won't buy it, so successfull lemonade sellers must sell yellow or pink lemonade for it to be sold frequently.

And that's how the world got advanced!

To test this out, try to shop in a foreign country. You will instantly recognize brands that are sold at your own country, but you will be at loss about the rest. Western worlds usually follow a carefully evolved outlay so you may find what you want by looking for what you recognizes from home, and you will then know the layout of the shop and can buy and pay that much faster...

cool...

In a way yes :D
The large superstores can experiment with the layout and make heavy analysis on how you shop at the different places. All shops warn you that the shop is camera viewed, usually with some crime prevention logo, but in reality the cameras are there to track consumer habits. Products are also placed strategically in other ways, ordinary prices are at the middle shelves, pricy goods are at the top and cheap wares are at the bottom, so the camera's can reveal what kind of budget you have as a consumer by the way you move through the shop. Sometimes they switch this system around. I've started studying shops for a while and one pattern I've discovered by my self was that at one day they sold sodawater at one half of a shelf for a cheap price and the other half at full price, and the next day the price would be switched around. So if you are the cheap shopper you always buy the cheap one but has to take the flavor of the day instead of what you usually prefer. If you are favoring a specific brand your price depends on what day you visit, and if you shop more ore less randomly you will pay the average price.