I agree that spending (wasting?) 150K on a sports car makes little sense from an investment prospective. But what is wrong with buying a house? Its considered an investment. At some point he can hopefully sell it for more then he paid for. Additionally I wouldnt spend the majority of the money on a house, but I want to play devils advocate here.
Nothing, as I said, I would buy an apartment, just because that's what I've been looking for in the last months. So the gist is that I wouldn't change my plans just because now I can buy something 4 times more expensive. If I thought, pre-2m, that a 150k living space was enough for me, a 600k place sounds like a waste of money.
anatoli corrected me on the pricing, but the essence remains: Do not spend the new money on new, used-to-be-expensive things.