Demand for Olympics tickets could outstrip supply with one in five adults saying they plan to buy tickets for the London 2012 Games.
But while 70% believe the Olympic Games will boost the UK economy, only 39% believe this will outweigh the cost of hosting the spectacle.
Organisers are releasing 6.6 million tickets to spectators in Britain, with a deadline of April 26 for applications to join the ballot.
Outdoor advertising agency Kinetic Worldwide said the Games could be "massively over-subscribed", with 10 million Britons saying they plan to apply for tickets.
A further 2.2 million tickets will be available to overseas spectators and organisations sponsoring the Games.
In the capital, 36% of people say they plan to buy tickets, with just 23% saying tickets are too expensive. Organisers say one quarter of tickets will cost less than £25 and 90% will cost less than £100. The best seats at the opening ceremony will cost £2,012.
More than half of Londoners say they are now excited about the Olympics, up 10% since October to 51%. Across the UK 40% of those surveyed said they are excited.
More than half of those planning to go to the Olympics say they are not sports fans but consider it to be a "once in a lifetime" experience.
James Copley, of Kinetic UK, said: "Our research suggests the level of anticipation and interest in attending the Games is growing and London will see a surge in visitors at the top end of expectations."
Kinetic Worldwide surveys a panel of 500 UK adults every quarter.
Photo by www.mkfive.co.uk
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