I prefer to have only a few friends whom I can rely on. Quality over quantity. You may ask yourself--do you prefer having broad acquaintances or a number of people you can call at 2:00 AM when you badly need a drink or just someone to talk to?
Also, truth is, even if you are in a group of people whom you have known for a couple of years, you cannot be in the same level of closeness with every single one of them. You will eventually develop deep connection with a few of them and some of them may not even be your friend till the very end, especially when both of you become distant for whatever reason.
I do believe that there is nothing worthy in sticking with people who do not (intend) to know you, your dreams, your quirks, your failures, etc.