@racedo....it's human and it's called snobbery.
They also think milk from Tesco's tastes much better than milk from Aldi's
Milk is a pretty standard product though. Where would I prefer to buy a pre-made dessert, or a ready made food product?? What brand name do I have more faith in?? The quality of the ingredients that make up the final product..
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...
But sometimes when that offer is too good to refuse, or you have no other option, you cover up and sneak into Lidl (or use Ryanair).