The store's name seems to help.
Mr Singh said he thought people were keen to buy their Lotto tickets from the shop when they saw the word "lucky" in its name.
Local Ian Bolton said he only bought Lotto tickets when the prize pool went up.
If he won the big one, Mr Bolton said he would probably spend it on the cliche things like paying off the mortgage, and helping friends and family.
"It's such a large sum, goodness knows, but it would make life easier."
Rotorua's Rachel Richards said she did not usually buy Lotto tickets but she won $25 in a Melbourne Cup sweepstake at work, so decided to spend that lucky money on a ticket.
She was not sure what she would spend the money on if she won, but said it might include something to do with her horses, such as a new horse truck.
More than $86m in First Division prizes have been shared by 100 First Division winners in Rotorua since Lotto started in 1987, including three Powerball First Division prizes and one Big Wednesday First Division prize.
The largest Powerball prize won in the region was sold at Springfield Superette and Lotto in June 2015, when a player won $24.3m with Powerball First Division.
Rotorua's 'luckiest' Lotto stores:
Number of First Division winning tickets sold for Lotto Family (Lotto, Powerball and Strike) and Big Wednesday
1: Lucky Lotto Store, 15 First Division wins
2: Paper Plus Central, 13 First Division wins
3: Pak N Save Rotorua, 12 First Division wins
4: New World Westend, 11 First Division wins
5: City Books & Lotto, 8 First Division wins
