Slight of Hand "Head Line" Pricing

We've recently returned from a Coast to Coast, Irish Sea to North Sea, trip; Blackpool to Scarborough.  Both of the sites were lightly populated but it was High Season, £28.70 and £30.30 respectively per night Standard Pitch two adults.  We thought this was excessive due to the Obvious lack of demand.

I downloaded the Prices Leaflet, a new introduction this year.  This made for Interesting reading.  Headline From prices for Pitch plus one, for example Borrowdale £10.10, we'll visit then; but that applies for One Day Only, 3rd Nov.  The next higher price is only £1.20 more, so why bother Fiddling one day cheaper?  There are 44 dates available at £11.30, shouldn't that be the Headline?

What's going on with this club of ours?  I've given just the one example, but more similar can be found.  I wonder what the Objective was in such pricing?  Some answers from the Hierarchy would be good.