Criteria of Rolex Collection!!!

[Rolex Lover]

I love watches, specially Rolex and would love to have all its models oneday. I have a question and please folks don't take it as I'm trying to be involved in someone's business. I saw many posts of our friends Rolex collection, and what surprises me that some of them have repeated models in the collection!!! I don't mean that a person has a GMT pepsi and coke, but some have same of the pepei and same of the coke. Even the bracelet is the same and the model year is not more than one year difference!!! For me, if I want to buy two GMT II pepsi and coke, I will put for example a Jubilee bracelet on one of them. I have a SS Sub, and I won't think of re buying the same model unless Rolex changes something sinificant in the watch, ceramic bezel for example. May be some of our friends with bigger collections have thei own reasons or criteria and will love and highly appriciate if they share their thoughts.

Thanks,
Ahmed