Where I live, we don’t yet have those cards. I despise the idea of them and hate getting caught out by them (I’m looking at you Tesco and Lidl).
Normal price for something - 0.49 (in stores without these cards) But in their store it’s only that price with their ‘club card’ or ‘plus membership’.
Otherwise it’s 1.59
There are loads of other items with high markups.
BUT - the marked price is the normal store price to the inexperienced shopper of these data collecting stores, with the blind spot being the need to have a store card to get the ‘discount’. My full shop was an extra 103.46 altogether between the two stores (51.22 in one 52.24 in the other) rushing to get christmas dinner and dining and extras. Should be banned. /rant
The government doing a sick job of protecting consumers. /s
Lidl isn’t too bad for it, at least not around here.
Sainsburys is probably the worst for it around here. A lot of the most popular items are routinely marked up 40%. The supermarket I work for, which shall remain green and nameless, is getting worse for it too.
Aldi is doing it right IMHO. Doesn’t have an app, doesn’t accept coupons, just tries to get people through the door as fast as possible and pass some of the savings on.