What will be the value of one Bitcoin when the number of users (people that will want to use Bitcoin) will hit 21 millions?
At this point, if each user wanted to have 1 Bitcoin, will have to pay a certain number of $ or or Y, whatever. I'm going with $ just because it's the most used around the world.
How many $ do you think that person, the n. 21 millionth, who wants to buy 1 BTC will have to pay to obtain it?
My wild guess is: 160000 $.
If we were to have 21 million bitcoin users, the prices will surely sky rocket, but I think that just means we begin trading more in Satoshis than using bitcoins as a regular trading unit.
I really look forward to such a day

Wild Guess: 10k$ per btc when the users reach 21 million.