In message , at
17:47:22 on Mon, 2 Apr 2012, Arthur Figgis
remarked:
Holiday companies know quite accurately what the demand is going to be,
in advance. Because of historical data and their knowledge of the market.

Except the ones which calculated that 2011 was going to be a good year
for holidays in North Africa...

There's always going to be exceptional circumstances (holidays to Fiji
are off the menu this week, for example). Doesn't alter the general
principle.
--
Roland Perry