Friends vs acquaintances. Fall on rough times, and it's easy to see the difference. The only need I see for having a lot of acquaintances is the ability to network for a job or other project. That will be important at a certain point in life. Still and all, I'd rather have one or two good friends than 20+ affable acquaintances.
That said, I am the crazy old lady who doesn't usually like a lot of people around. The folks where I live are always doing group things, so I accept about every fourth invite just to be polite. I like them - they're good neighbors. But sitting with one or two people having lively discourse over a cup of coffee is more enjoyable for me.
"Right is right, even if no one is doing it; wrong is wrong, even if everyone is doing it." - St. Augustine