He said sales had picked up significantly and another ritual some customers had was wanting to buy a ticket from a lucky shop.
The store's winning ticket success in the past gave customers a lot of hope.
"We got off to a flying start when we opened.
"In the first four months, we sold three [winning] first division tickets and a [winning] powerball ticket as well as a top prize on a scratchie."
Pak'nSave in Dunedin was revealed as the luckiest Lotto shop in Otago yesterday.
It has had 26 first division Lotto family wins.
South Dunedin's Night 'n Day was the second luckiest as it has had 17 wins to date.
Devereux believed they were luckier than Pak'nSave.
"If you base it off how many tickets are sold, in relation to the wins ... we are probably luckier than they are."
University of Otago statistician Matthew Perry put to bed some misconceptions about the odds of winning the big prize.
He said the probability was fixed no matter how many people bought tickets for the lottery.
"It just depends on the numbers that come out [but the] more people play, more people are likely to win so, therefore, your payout slightly gets smaller," Dr Perry said.
The chance of winning Powerball still remained about one in 38 million.
If you were the only winner, $42million in the bank at 3 per cent interest would give you a massive $1.26 million a year.