The Highlanders had a convincing 43-12 win over the Rebels in Invercargill on Friday night in front of a crowd of just under 8000.
With the Highlanders' new Dunedin base of Forsyth Barr Stadium attracting crowds of 22,500 and 17,500 to the first two home games, the comparatively low crowd at Invercargill has raised the question over whether it is economically viable to play in Southland.
Clark said any decision would have to be looked at by the Highlanders board in the review of the season.
But, as the Highlanders were a regional team, it was important to play games around the region. He felt 8000 was a good turnout.
"A lot of it has to do with timing. If you have three home games in a row then you are asking a lot of people in Dunedin to be able to afford that," Clark said.
"With the game this week [against the Stormers], ideally it would have been good to go to Queenstown as that is where a lot of people are.
"But because it was a night game there was no way we could do that. Previous Easter games in Dunedin and Invercargill have not drawn that well but we are hoping for a decent sized crowd this time around."
Queenstown does not have lights and, with the match against the Stormers having to be played at night, the resort was not an option. Temporary lights could not be installed at Queenstown.
The contract the Highlanders had with Forsyth Barr Stadium meant they could play three matches over two seasons out of Dunedin.
Ticket prices were actually more expensive in Invercargill than Forsyth Barr Stadium, so that made it a more attractive venue. Ticket income was important for the Highlanders as the franchise relied on ticket sales and sponsorship for income.
This Saturday's match against the Stormers was a big game, Clark said, with the Stormers top of the table and the Highlanders second.
With university students on holiday. the "Zoo" at the western end of Forsyth Barr Stadium would not be operating.
Student prices would still apply but both ends of the stadium would be closed.
The emphasis this week would be on family seats with 4000 installed, up from the 1800 at the first two games which had sold out.
So far, 9500 tickets had been sold and Clark was hoping for a crowd of 13,000 to 15,000.
Meanwhile, the Highlanders have not yet confirmed whether first five-eighth Mike Delany will join the squad. The contract to sign the former All Black has yet to be finalised although it is hoped Delany will be available for this Saturday.
The Stormers, the only team still unbeaten, have arrived in New Zealand and will be in Queenstown until Friday.
Evergreen loose forward and Stormers captain Schalk Burger has not made the touring squad as he recovers from a knee injury.
The sale of thousands of Double Down burgers at three KFC stores in Dunedin at the weekend raised $30,000 for small creditors left out of pocket by the Otago Rugby Union.
KFC general manager Brent Kitto said KFC had been part of the Otago community for 35 years, and the fast food outlet was keen to ensure local businesses which have supported Otago rugby over the years, were not themselves put at risk.
