Right now is the best price for the Cedar Fair Platinum Pass. No other sales.
Unlike Six Flags the Season Pass is NOT good the remainder of this year unless you pay more.
They also give a discount at renewal and this year are giving a free one day Fast Pass Plus for 2016 at Cedar Point (almost worthless as lines are minimal this time of year).
Kings Island, Kings Dominion, Dorney Park, Carowinds, Cedar Point are close enough to make it worth the $$.
I don't eat Theme Park food so I don't even consider any Dining Plan....that stuff will kill you.