One striking thing about the new White House Obamacare promotion campaign is that so far it hasn't had much to say about the central focus of Obamacare, which is helping Americans buy affordable health insurance.Look at the cases President Obama has highlighted. There are young people who say they have benefited from being allowed to stay on their parents' health policies until age 26. There are people suffering from serious illnesses who say they are thankful there will no longer be lifetime caps on insurance benefits.