Buying First Rolex. Q's?

[investmd7]

Hi everyone. I have wanted a Rolex for years and have finally decided its time, I figure its a nice early b-day gift to myself. I was considering the Milgauss with the black face. I was trying to locate a Green Quartz but they say its near impossible to find at an Authorized Dealer. Does anyone have a Milgauss? Any feed back or opinions. Is it worth it, or would a Submariner be better for a first time Rolex buy? One of the things I like about it is they say they are hard to come by? Is that true or more of a sales gimmick? Any help would be appreciated. Thanks.