Recently I've read a lot about Second Life numbers. For instance, there are over 11,5 million accounts created; there is still 10 percent user retention, and SL seems to plateau at 538 K active users.
I have been thinking about that last number: 538.o00 active users. An active user is someone who has spent 45 hours in SL in the past month.
45 hours? That's quite a lot! Personally, wether I'd want it or not, I would be hard pressed to find 45 hours in any given month to spend online. I have a fulltime job, a wife and children to spend time with, volunteer activities in our local community, spend a few hours on my mountainbike to stay at least a bit in shape. I'm lucky if I can spend 20 hours online, and there are months where I can barely log 10 SL hours.
So, maybe I'm not an active user after all. But this does not mean I'm not there, interested, reading up, and buying stuff in SL. I am also the sole SL resident in my entire family and extended circle of friends - and most of my colleagues, as well.
Maybe 45 hours is a bit on the steep side for the many people who've got just too much other RL stuff going on. There are probably plenty people who consider themselves active SL residents, like me, but are not counted among the 538.000 'officially' active users.