I suppose since I'm still technically in college I should comment.
I have no idea how many credits I've taken (haven't bothered looking at a transcript lately)... I would estimate around.... 140? Been in school for some 6 years or so. Got my B.S. in comp sci in '03, then worked on my Masters full time for a year, got a full-time job making good money, so now "working" part-time on my thesis. Meaning I'll probably finish it in the next decade, though I'm debating putting a hard-stop date in for December - either finish it or quit. It's a good way to waste $3000 a year, I suppose. (And yes, my advisor is a dick, otherwise I would have been done a year and a half ago)
The point is, no one is joking when they say that college makes up the best years of your life. Well, maybe retirement might be good, can't comment on that yet. It's not all that surprisingly... you don't go to school to have fun the rest of your life, you go to school to get a good job to provide a good life for yourself and your future family. Sucks for you, but good for your kids. Working hard is better than living on a street corner.
I had a staple of maybe 5 good friends in college, but that was really good enough. Half of them and half of my good friends from high school will wind up in my wedding party next year, for what it's worth. You don't need to be uber popular to have fun, you just need to find enjoyment with a group of like-minded people.