On a per acre basis, LA is already valued higher than LAH, typical of a late-stage bubble phenomenon. Not only that, some dinky puny sorryful shacks in nondescript neighborhoods are already selling at a higher per-sqft price than Portola Valley, that is how crazy things get.
Just check out the insider selling transactions of GOOG and you know which direction that stock is heading. I adhere to Graham's teaching, never touched any IPO stocks or HOT stocks for my core investment portfolio. Very interested in joining the shorting crowd once the trading trend is established. Watch out for dead cat bounce on the way down. BIDU is single-digit stock, 30 would have been overvalued.