Would you join Slughorn's Slug Club?

On the one hand, Slughorn isn't a bad person, just eccentric and greedy and materialistic and a bit shallow.

But on the other, the club is basically a place for skilled and/or rich brats to talk about themselves and generally be obnoxious about their abilities or their family.

But on the other hand, if you're good at networking and socializing, there's a good chance you can find an In into a career in your field so you have something lined up after graduation.