I was very lucky to purchase some bitcoins today. I think you are spot on. If less than 50 million will be made, the value per bit coin will be ridiculous in the coming months...
There is only ever going to be 21,000,000 Bitcoins in circulation. Of course the price of 1 Bitcoin is going to be through the roof.
BTC can be replaced at any time. The infrastructure is compatible with any other alt.
Yes, for sure it could be replaced, but what would the incentive be to do it? There are 1000's of companies and merchants around the world invested in it and it's backed by one of
the strongest decentralized networks on earth. The new alt coin would have to be brilliant for people to migrate away from Bitcoin or Bitcoin would have to have some major
flaws for people to start doing it. For now, we are still potentially wealthy contenders.