to be honest it is impossible for the bitcoin price to grow that much right now thus you wont be able to buy a house for your btc for a really long time in my opinion
though if the price would go up that much i think you should buy eeverything you want if it makes you rich because after some time the price might fall once again
Everybody seems dreaming here therefore I want to dream bigger. What shall I do with a house? It's ok if one is looking for security or such but not me.
I'm looking for fun.....

To buy a house is the best investments that you can make, because a house will be not reduce in value later and that is the best thing, so you will have profit if you are selling it.
But the bad thing is that you need a lot of coins to buy a house, and it depends also what kind of house, but the conclusion is that it is smart to buy a house indeed with Bitcoins.