It's a mixture for me (but I guess that's true for a lot of people)
I like to drop in a club, primarily because, when I'm really up, I like to zone out and meditate to the music for an hour or so. At first, during the "honeymoon period", I used to be a lot more talkative and used to find myself getting loved up and experiencing a kind of cocoon effect wherever I was, so I could sit in my house/room or on the floor somewhere in a club chatting for time and hated to move, but now that I'm a lot more used to the experience, I really find that chatting to people can be a bit of a hassle when you're up and you just want to experience the music and lose it on the dance floor for a bit (makes me sound a bit of a twat but that's just how I feel)
This is why I also find dropping at house parties a bit of a drag. I don't really get the same feelings of empathy as I used to and, coupled with the amphetamine nervousness you get from the (mostly) poor quality pills we get here in the UK, I find it hard to be patient and really connect with people when I'm in that initial coming up/plateau phase.
Obviously though, debrief at someone's house or any environment where you're around your mates (at one point my mates and I would sit out by the river in front of one of our houses for hours after a club, just drinking and chatting) is de rigeur for after the club. I also love getting to parties in that 3/4 am zone when you're still quite nicely up but chilled enough to relax, have a few drinks and shoot the shit.