I share the beer snob's disappointment in the small selection of draughts but understand the difficulty in providing more. Anyway, I learned on a recent cruise that some beers (cans/bottles) are available even if not listed on a menu. To wit: John Smith, an English ale that is a seldom-seen brew in the States. (Even snobbier beer snobs know that this product is now owned by Heineken and might not be the same as in years past, but I was still happy to discover it, thanks to my happenstance bar seating beside a gentleman from somewhere in England.)