Here's what 200 calories look like in certain foods:
http://imgur.com/a/w9nHF
Anyone caught out by that? This is all the coke/pepsi/whatever you need for 10% of a daily calorific allowance for the average lady:
http://i.imgur.com/y2aaTgq.jpg
"And surely it will be the normal majority that end up paying for the tubby few, (Fatties no doubt buy in bulk and get a discount anyway) so how is that fair?"
It's not, if true. However you'd probably just not have the fizzy nonsense if it was too expensive as many likeminded people would - the general sales may go down and you might find yourself happy that "fatties" are paying their way.
Did you mean to post a link by the way?