This study examined the relationship between gambling engagement and years of gambling experience. The survey data were collected both online and offline in Macao, China, between 2018 and 2019. Respondents had to be at least 21 years of age and had gambled at a casino in the last 12 months. A total of 687 responses were collected and analyzed. The researchers found that a quadratic model best helped to explain the relationship between years of gambling experience and frequency of casino visits. The respondents’ likelihood of visiting casinos daily increased over time until they had about 13 years of gambling experience. After this point, their casino frequency declined. A quadratic model also helped to explain the relationship between years of experience and budget per casino visit. The likelihood of people gambling unrestrainedly (i.e., having a gambling budget greater than the first quartile of all respondents regardless of years of experience) increased until they had 22 years of gambling experience. After this, they decreased how much they budgeted per casino visit. The odds of having a gambling budget greater than the second quartile increased until the respondents reached 22.4 years of gambling. After this point, they decreased their budget per casino visit.