1m is far far away man 
yeah, we will have to wait a few decades for it most probably and i still doubt it that this will happen, though i think that everything is possible with bitcoinsbut still we can hope for the better and we will say that sooner it will reach to there if a time come when all of the bitcoins are mined and people from all of the world will adopt it and mass adoption will occur and the price will boost up to a higher value.
Nothing is impossible with bitcoin, it has an ability and potential to achieve that price in future, and if I see that price then I will prefer to sell my coins and enjoy luxury retired life.
And I don't think that I will have to sell most of my coins at that time, as with bitcoin I can easily purchase any thing from online(the price of which are much lower than my local market) so I will purchase from there when ever I need any thing to buy and for those things which will not be available with bitcoin I will convert them to fiat.