Some call it snobbery, some call it value for money. Good value doesn't necessarily come from the cheapest price or product. That's why people still use M&S food, Waitrose and purchase finest lines at Tesco. Otherwise everyone would be buying Value, or racing to Lidl... Do you honestly think MO'L munches Sainsbury's Basics, because its such good value and still excellent quality, yeah, get real...
ALDI frequent beats the brands and the so called finest from others, most products come off same production lines as limited number of producers so expensive means you don't get what you want as lets face it paying loads for BA seat and bags is great but when all that money and they go on strike well how much is that premium price worth again.