Personally even if BTC goes to 10 000$ I don't have enough of them to buy a house. I want to buy a house this year, and it will cost about 270BTC at current value. If BTC was 10 000$ it would only be about 30BTC, but I don't hold 30BTC. I could buy 30BTC right now, but I think it will take years for BTC to go to 10K, if it ever happens, and I want the house right now.

I will keep several BTC, so that if it goes to 10K I'll be happy anyway, maybe buy me a Porsche with it !