In a blog post, he predicted that all newspapers would soon charge for access to their websites, but also asked readers to send him their views.
The Argus is owned by Newsquest whose US parent firm Gannett has increased the number of newspaper sites with paywalls from six to 78 over the past year.
National dailies the Daily Telegraph and The Sun announced earlier this year that they would adopt the metered-paywall approach of the New York Times, which allows readers a certain number of free stories before being required to pay.
Kevin said he believed arguments against paywalls which claim readers will simply go elsewhere for their news did not apply to local papers.
“At some point in the not-too-distant future I believe all newspapers will charge for access to their websites,” he said
In his blog post, Kevin asked Argus readers to get in touch with him directly to tell him whether they would be willing to pay for their local news, and if not, why not.
He said: “There is a cost to producing news. Therefore it must have a value. That is basic economics.
“Who else produces local news about the area covered by the Argus? Who else produces what the Swansea Evening Post does, or the Wrexham Evening Leader?”
“If you spend money on producing something – whether that be news or nuts and bolts – and if there is a demand for it then it should have a price.
“There is no doubt in my mind that the current business model for newspapers, like the Argus, that allow free access to the bulk of their editorial content online is unsustainable in the long term.
“How can we continue to charge readers for a printed copy of our newspaper but allow them to read much of its content for free online?”
Speaking at the Society of Editors’ Regional Conference in the West Midlands earlier this week, Robin told industry leaders that newspapers could not continue giving content away online for free.
He said while he had not decided when a paywall would be introduced at his titles, he was “fairly certain” it would happen.