In answer to OP I'd say bitcoin is still undervalued. When 2-3 coins will buy a house plenty will spend them.
2 to 3 coins will buy a house? You wish.
Maybe a deposit on a house, but the full deal? I doubt it.
I'd love to see BTC at $50,000/coin but I can't see that happening for an incredibly long time. Sure, there is a chance, but it's a very small one.
$5,000 is much more likely than $50,000...and much much much more likely than say the $100,000 that some bitcoiners are claiming.
Buy some BTC for $500 each today and sell them @ $5,000 each...you'll have made 10x your investment. Now, that's not to be sneezed at.