As the five-year anniversary of Kostas Grill Rustic Greek Cuisine approaches on Feb. 2, owner Gus Stavrides is very grateful to his loyal customers. Without them, maybe Kostas would have joined the 60 percent of restaurants that close within six months of opening, he said.

“This is a tough business, but if you provide quality and good service, your customers love you,” he said. “In the beginning my accountant told me I was crazy to open a Greek cuisine restaurant in the small town of Tuckerton. She said, ‘A lot of people here don’t know Greek food.