Ben Affleck and Jennifer Lopez in Escrow for $64M Pacific Palisades Mansion

Ben Affleck and Jennifer Lopez pulled the plug on a mansion they were trying to buy -- but for good reason -- 'cause the new one they want is way nicer ... and twice as expensive. Real estate sources tell TMZ ... the married couple is currently in…

Ben Affleck and Jennifer Lopez in Escrow for $64M Pacific Palisades Mansion
Ben Affleck and Jennifer Lopez pulled the plug on a mansion they were trying to buy -- but for good reason -- 'cause the new one they want is way nicer ... and twice as expensive. Real estate sources tell TMZ ... the married couple is currently in…