I came across this information about benefits to shareholders of at least 100 shares in Carnival corporation CCL (currently trading at about £13.50). It seem that OBC of $250 for 14 day $100 for 7day and $50 for less than 7day is available on all the carnival brands including the Brit brands Cunard etc. I'm not advocating buying stock just for this reason , particularly in these troubled times, but it seem to me that the more prolific cruisers on the board would receive back an initial outlay in a reasonable timespan.
Has anyone taken advantage of this?
Here is a link

http://library.corporate-ir.net/library/14/140/140690/items/287713/Carn_Benefit.pdf