Everyone doesn't activate on day 1
I didn't get mine till day 4 (although it was bought on day 1 by a friend) and it took me a few days to get everything sorted out to get the family switched over to a single family plan. So it ended up taking me 5 days to activate.
You can measure activations but you have to measure them within a reasonable time period -- say a week or so.
Biting the hand that feeds IT
