The survey of more than 1,200 Australians also found that 88% of people who have purchased from a group buying site now look forward to receiving the deal each day.
Meanwhile Nielsen data for January 2011 also shows that the category is experiencing significant growth, with audience figures increasing by 400% from August 2010 to January 2011.
Cudo CEO Billy Tucker was rapt with his company's success, saying 'We're thrilled that we have not only retained but strengthened Cudo's position as Australia's number one group buying site. We're also leading category growth, with 39% of the group buying category visiting Cudo in January.
'We're expecting six more months of significant growth, which we expect to lead, followed by industry consolidation to a selection of major players. As predicted, our unique model provides us with a significant advantage when it comes to attracting the best merchants and the highest audience, the two fundamentals dictating success in the group buying arena.'
MySkin Laser Clinic in Melbourne offered a deal through Scoopon, where $79 bought a voucher for laser hair removal deals to the value of $500 - an 84% discount.
More than a thousand people bought the vouchers, locking in three months' worth of business for the clinic.
"We publish a list of the usual prices for the different types of treatment, so that voucher-buyers are clear about the value they are getting,' said the clinic's director, Chris Ohanian.