Some people like to have a wide social network spanning far and wide.
Others like just a handful of intimate relationships, where more time can be spent really getting to know those few people.
What style suits you most?
I prefer quality over quantity. Lots of intenationals on my FB which I like to share what is really going on and vice versa. 20 is a hard number to reach but like we used to say in the Army. Its where you find out that you can count them on one hand. Sad but almost really true.
I'll take a few true friends over a bunch of "here today gone tomorrow" friends any day!