The thing with "extra strong" varieties of cider and lager is that they are only drunk by one sort of person in my experience. Chronic alcoholics who do nothing but sit at home all day and drink. They should be banned. They taste like bleach and do nothing but get you bladdered.
Its fair enough carlsberg spesh brew is more expensive, but own brand strong lager and white star cider etc is so cheap, its easy for these people to get hooked.