It is what Aldi-branded stores still do to some extent in at least Germany/CH and the US. They still have many consistent store-brand products, however. Trader

It is what Aldi-branded stores still do to some extent in at least Germany/CH and the US. They still have many consistent store-brand products, however. Trader Joe's is really a different animal. It has a interesting rotating selection of specialty items, usually more global or seasonal in nature with biweekly or monthly "themes," along with a fairly consistent store brand selection of reasonable quality that doesn't just optimize for a low price. Most stores around the nation will have similar items around the same time, and they will be seasonally relevant, so they're not just stocking what was left over in that geographic region.