Old cult

I came across the phrase "a new cult" somewhere totally non-religious related. However, before knowing what it means, I thought of something. Is there such a thing as an old cult? I guess ... no.

Only new group of beliefs invite others to label and name it as a cult, and here I am using the negative meaning of the word cult. If a group is correctly a cult, then it won't have the chance to become old. If a group does become old, it is probably not a cult. Furthermore, when it is old enough, it would have proven itself as a proper religion.

That is, all religions are old enough cults.

PS: I saw the phrase in the a news article about a gift given to the US President Bush from the Prime Minister of the Republic of Slovenia and President of The Council of European Union Janez Jansa.