With TV rights and parachute payments, being victorious at Wembley is believed to be worth around £90million.
"If we go up and can get people to Bloomfield Road then everybody will prosper," said Ian Holloway, the Blackpool manager.
"It's not just our lives we're trying to change, it's everybody in the town."
Regardless of the winner, there will be new look to the Premier League next season. Bloomfield Road, Blackpool's ground, still houses away supporters in a temporary stand and would be the smallest stadium in the history of the Premier League.
Cardiff, on the other hand, describe themselves as representing the whole of Wales as there has never been a club from outside England in the Premier League.
Swansea, Cardiff's fierce rivals, were the last Welsh side to compete in the top flight prior to their relegation in 1983.
There are also more practical concerns for the Bluebirds - who have had five winding up orders from Her Majesty's Revenues & Customs over a tax bill of £1.9million.