Just before 5 p.m. on a Saturday in mid-October, a Cadillac limousine climbed the curvy driveway outside the Newton home belonging to Dr. Ralph de la Torre and his wife, Wing. Inside, the 75 guests were anxiously awaiting the main attraction while staying busy wondering how long the de la Torres' adorable 2-year-old twin sons would be able to keep their neckties attached and their dress shoes on. Swell parties like this are not uncommon in the West Newton Hill neighborhood, which is dotted with multimillion-dollar houses like the de la Torres' place. Still, this gathering stood out for two reasons. First, just about every person attending had paid $15,000 a pop to be there. Second, the guest of honor was none other than President Obama.