As some experts have been warning recently, housing conditions like California's could be an early sign that we're headed into another housing bubble. Buyers all over the state are getting into bidding wars, home prices are on a steep incline that some say is unsustainable, and open houses are once again attracting a frenzy of house hunters. This is what we saw in 2005 and 2006. So should California, despite all its encouraging news, be making us worried? Not necessarily, says AOL Real Estate.