The number of broadband users attracted to Virgin Media's newly-launched 50Mb service will impact directly on the speeds enjoyed, according to one expert.
Ian Fogg, principal analyst at Forrester Research, has told the Times that the popularity of the UK broadband market's speediest offering will have a bearing on the quality of the service.
He also pointed out that customers should not sign up to the deal expecting to receive the advertised 'up to' speed of 50Mb.
Mr Fogg told the newspaper: "The reality will be a bit different [than 50Mb]. How successful it will be is how successful Virgin Media will be with customers.
"The more customers that sign up, the lower the speeds customers will actually receive, because of the way the network is structured."
Broadband users taking the package as a stand-alone product will be charged £51 per month, Virgin Media have confirmed.