This is from the American psychiatric association. If you answer yes to four, you have a diagnosis of gambling addiction. I think replacing the word gamble with the new activity would be on way to answer this question. I guess though with most replacement activities you don’t spend a lot of money.
“Need to gamble with increasing amount of money to achieve the desired excitement
Restless or irritable when trying to cut down or stop gambling
Repeated unsuccessful efforts to control, cut back on or stop gambling
Frequent thoughts about gambling (such as reliving past
gambling experiences, planning the next gambling venture, thinking of ways to get money to gamble)
Often gambling when feeling distressed
After losing money gambling, often returning to get even (referred to as “chasing” one’s losses)
Lying to conceal gambling activity
Jeopardizing or losing a significant relationship, job or educational/career opportunity because of gambling
Relying on others to help with money problems caused by gambling”