As Rupert Murdoch ran a second day of full-page apologies in many titles the papers pulled out all the stops to pile on sales.
The Daily Mail ran a TV ad trumpeting its new boast that it is now the biggest selling Sunday paper and the Sunday Mirror also ran a TV campaign on Saturday.
But media analysts warned that a short-term sales surge could be followed by long-term collapse in the market.
And a survey for wownews.co.uk showed that households who previously had the News of the World delivered were not replacing it with a different newspaper but cancelling completely.
Mamoud Madani runs a newsagents close to News International printing works at Broxbourne, Herts where the last edition of the News of the World rolled off the presses.
He said: “I used to deliver 48 copies of the News of the World.
“With the last edition I sent a note asking people what newspaper they would like to have delivered instead.
“Only two people replied.”
Ivor Gaber, a professor of political journalism at London's City Journalism, said: “I think the Sunday market will shrink because when any newspaper closes some of its readers are lost.
“To take a longer and broader-term view... up to half of News of the World's sales could effectively vanish.”
This week all Sunday papers have increased print runs but the real future looks grim.
The Guardian reported the Daily Mail is planning a new mass-market Sunday tabloid.
The Mail on Sunday, which normally sells just under two million copies, is printing more than three million this weekend, while the Daily Star on Sunday is more than tripling its print run to 2.2 million, reports said.
The Sunday Express, the People and the Sunday Mirror are all said to be increasing their print runs.
Plans for a Sunday version of the Sun, which sells 2.8 million copies a day, are still ongoing but News International executives are waiting for public outrage over the hacking scandal to subside.