Chinese will stop buying when the prices fall. They won't hold up the market.
TMNT - the response will be 'saw it coming, that's why sold out of B grades, refinanced A grades and have cash ready to move'
Except Tokyo,I think all top 10 cities are at or near peaks(ie NYC London HK Singapore Paris LA Shanghai Sydney Toronto). Odds are in your favour but if. 50% fall really did happen you should try to load up.