They run out of regular Cornnuts first because no one wants to eat chili picante Cornnuts. But the store isn't going to buy more plain Cornnuts until it unloads its chili picante, nacho cheese and taco Cornnuts. Viola, no plain Cornnuts. Nabisco makes both cookies and crackers, the difference being that the former is primarily a sugar delivery device and the latter is for salt. Which may explain why Nabisco once merged with a company that makes delivery devices for tobacco, R.J. Reynolds, and is now being bought by another big tobacco company, Philip Morris, which also owns Kraft Foods.
Crackers are another story.
Crackers were sold out of barrels until 1898, when Adolphus Green, president of the newly formed National Biscuit Company, created the Uneeda Biscuit, the first cracker packaged in cardboard. During World War I, Nabisco made hardtack biscuits for the troops, and in 1928 it bought the Shredded Wheat Company, which began in 1882 when chronic indigestion sufferer Henry Drushel Perky created a cereal out of boiled whole wheat. In 1928, the company began to toast and butter its whole wheat crackers. Ah, but they just couldn't leave well enough alone, and now Triscuits come in different varieties and sizes. There's reduced fat and low sodium, deli-style, garden herb and French onion.