Q: They are so similar... and priced similarly, and their stores fill the same niche in the marketplace. The only difference I've ever been able to see is that Krystal is mostly in the South and White Castle is mostly in the North. Are they the same company? Or just competitors that hit on similar formulas and approaches?

A: No, they are direct competitors since the 30's, White castle got started first, and Krystal came after, the only difference between the slider and the Krystal is that the slider has holes in the meat patty and the krystal has mustard. White castle is in the north east while Krystal is in the south east