Just came back from Aldi in Ashington, Northumberland where they had a big stack of these (5% abv Carlsberg Export) - presumably as an Easter bank holiday weekend promotion, should be nationwide too.
Great for people like me who like the odd beer, but don't want to have to buy 2-3 boxes at a time to get the best prices. (I prefer to drink copious amounts of wine instead! :-)
Equivalent to 40p/bottle 82p/pint £1.45/ litre.