Really I would think it doesn't matter. With that kind of interest (even if it just of the curiosity kind, rather than the stickiness kind), then it's a defini

Really I would think it doesn't matter. With that kind of interest (even if it just of the curiosity kind, rather than the stickiness kind), then it's a definite flag that you're onto something. So, even if the 200k users never came back, there was clearly something interesting about the concept to get that much attention. And with the right development, the next 200k people can be convinced to stay around. It's a lot easier to convince 200k people for a second look than it is to find 200k in the first place.