It's also diet and food choices. For example I shop in Aldi here in Ireland and this week a standard problem happened. I went with a list of ingredients to make an Indian curry from scratch and only managed to get about 70 percent of what I needed there. The same thing has happened before when doing a Thai or Chinese meal. Comparatively a normal sizwd Tesco would nearly always have everything. In particular Aldi would have a lot less options for things like spices etc.

One thing I do find funny though is the Lidl (and Aldi) practice of selling loads of random items in one or two of there aisles. Many is the funny story I or friends have of going into the shop for milk and bread and coming out with a unicycle, power welder and night vision goggles instead :)