[nomailing]

Just look at the exponentially rising number of bitcoin ATMs which are currently deplyed around the world. So your argument somehow shows that the comparisons with the early internet actually makes sense. Because at these early times people argued exactly by assuming that there is no network growth. So in the early 90th most people had the opinion that the internet is useless because there are only a few connected computers. Don't underestimate network effects and exponential growth.

Of course nobody knows at the current point where this is going. But you also cannot make arguments ibn which you are assuming there is no growth. Of course the price could go up or down but it is really hard to imagine that it would go to zero.

I have no statistics about it, but I personally think that most people who are once in possesion of some bitcoins will not sell them all, but will always keep a few of them. So the growth measured in number of users seems to only increase. I would consider a net decrease in the number of users as very unlikely as long as there is not a better technologically advanced replacement for it.