On 23/11/2015 08:38, Chris J Dixon wrote:
Sam Plusnet wrote:

It might be a tax on the unwary.

Supermarkets quite often have 'Economy Packs' which work out to be a bit
more expensive (per unit) than a smaller pack.
People still buy them even though the price per unit/100gm etc. is shown
on the shelf.

I challenged Sainsbury's earlier this year:

"I am puzzled about the way you organise your multibuy pricing,
when there are larger or multipacks also available. To look at
particular examples from my regular shopping list:

For quite a while you have had an offer on Sainsbury's Meusli
Fruit and Nut 750g "Buy any 2 for £4.00", which still works out
2p more expensive than the 1.5kg pack, making your on line flash
"Save Money" impossible to justify.

The packaging makes a difference.

Someone who doesn't use the product quickly might prefer two 750g packs
to a single 1500g one, which could go stale before it's completely
consumed. Then it might be worthwhile paying the extra 2p. For those
people, buying a 1500g pack wouldn't be practical.

--
Bartc