LOS ANGELES (AP).- The home sale slump has left some dwellings designed by Frank Lloyd Wright and other architectural luminaries languishing on the Southern California market. Marquee homes by Richard Neutra, Rudolph Schindler and others that once sold briskly to design aficionados for stratospheric prices are now selling at a loss if at all, with the well-heeled increasingly reluctant to buy. “Those days of easy money and money-is-no-object artwork kinds of prices are gone,” said architect and real estate agent Brian Linder, who has a listing for a 1937 condo unit by Austrian emigre designer Richard Neutra that’s had its price cut to $675,000 after hitting the market in May for $815,000. It’s a big change from just a few years ago, when the housing-finance bubble that inflated property values throughout the country earlier in the decade showed itself even more prominently among architecturally