My question is how much money do we have to spend to say we are a gambler, or how often do we gamble in a month?
If you say I'm a gambler, then I would say yes because I like to gamble. For some people or in certain environments, being called a gambler would have a negative value, so therefore I would not say that I am a gambler.
I think it comes down to the individual, because some people want to be called a gambler and some people don't, even if they do like to gamble.