Why isn't there much point? Oh, is it because you read the rest of my post and decided it was no longer relevant?
I think oftentimes the people we call friends are interchangeable unless the friendship runs rather deep. For example, I had several friends in high school who I haven't talked to since I graduated simply because the friendship was more a matter of convenience (someone to socialize with during classes), and now I've replaced them, more or less, with people who go to my college. However, that doesn't mean all friends are so replaceable, as I mentioned on my blog.