That is simply to push you towards a wristband Matt.
Make single tickets ridiculously expensive, to make a wristband appear the "economic" alternative.
A bit like three donuts for a fiver, or ten for a tenner.
At those inflation adjusted prices, I would say sack the big queues, sack the wristbands, bring back tickets!
Make the day fun for everyone, watch the efficiency of cold hard cash smash the queues to pieces, like they used to be.
Don't forget the book of tickets gave you a considerable discount of around 30%, off those single ticket prices...White Knuckle (a&b), or Family a,b,and c.
Where have all those c rides gone!
Did the go karts ever make it to the wristband?