The Quickmartans developed over the next few hundred years into several different factions.
There was the Bigbrand faction, developed in the middle ages, composed of Quickmartans who wanted to "maximize their opportunities" and migrate to countries all over the world, where they could go trade their name brand products for unreasonably high prices. The faction's leader, a woman named Jewe Losco, is still honored today as the founder of large grocery chains. You will probably see her name on your local Bigbrand grocery store, or one of the other founder fathers of Bigbrand culture, such as Sir T. Arget and Prince Wall of Mart.
Then there was the Cheapist tribe, which came about after some rogue Bigbrands traveled into India to find their true purpose: to sell products to the people at an affordable price. These travelers went by the names of Buddhaldi and Costcohammed. These two intellectuals were united under their philosophy that quality food is a right and should not be overpriced. However, they disagreed on how to lower their prices to compete with the Bigbrands; Buddhaldi believed that use of generic products that had the same ingredients and flavor as name brand products would be better for lowering prices, but Costcohammed wanted to instead sell his products in bulk to reduce costs. The men got into an epic fight, resulting in Buddhaldi heading east to China to develop his store, Aldi, while Costohammed traveled west to the Middle East and created Costco. Both men gathered large followings, and though they hated each other, they were united under the religion of Cheapism, named for the God of Bargains they worshipped, Cheaporo.
The Cheapist and Bigbrand factions hated each other intensely, and they always were trying to attract the other's customers. The Bigbrands would brag about their superior products, the Cheapists would go on and on about their better prices, and they were so commercialized that the general public began to tune out all of the factions' advertisements and just bought from the store that was nearest them. The factions noticed this, and built more and more of their stores, until the world was covered from America to Timbuktu in Wallmarts, Aldis, Targets and more. For the longest time, these were the only grocery stores people could buy from.
That is, until the beginning of a great war in America, known by many as the American Civil War (or the War of Northern Aggression for y'all Confederates out there). But to those of us who know the truth behind this great battle, it is called the Grocery War. We will see how this war shapes and develops the culture of health food for years ahead.