I noticed a bit of shameless profiteering recently, but dressed up as environmental concern which makes it even harder to stomach.
Depending where you shop, Douwe Egberts instant coffee is about 6 pounds for a glass jar with 190g of coffee in it. They also sell a "refill pack" alongside, (for to save the planet from too much glass production they tell you - despite the refill pack being plastic). It appears to be cheaper at 4.50, so you consider that instead, because the jar has a cost so you believe that might be where the saving comes from... But then you look closer and notice it's only got 150g of coffee in the pack, making it actually more expensive than the same coffee in a jar, gramme for gramme. So you're not going to buy the refill pack if your head's screwed on, which negates their claim that it's all for the environment.
No, you Dutch coffee bait and switch mongers, the smaller pack is not for the environment, it's for your profits!