User blog comment:Unownshipper/Flora and Fauna of Rapture/@comment-6024608-20131018060447/@comment-6024608-20131019115735

Theres beef and then theres BEEF, ditto Tobacco, etc... (little extras like 20 year old Single Malt Whiskey... etc...)

Of course highest valued smuggling goods go to rich people (maximizes profits). Look how much people pay for Kobe Beef or Lobsters  or Caviar or fine wines or even spices. As I mentioned quality can be a major factor for such contraband (or even plain things not Rapture-grown that some people  would like a little of  just for something different - there are thousands of foods from the Surface world and Rapture would still have a limited variety (even if they had many in production).

People likely brought supplies with them, of some of 'the good stuff' not produceable in Rapture, but after all the years those things could be running out.