Can government get people to buy a product that millions think isn’t worth the price?

That’s the question that health care analysts are asking as they pore over the results of the Obamacare open season that concluded on February 15.

On the surface, the data released earlier this month by the Department of Health and Human Services are encouraging. Nearly 11.7 million people selected a plan this year, compared with just more than 8 million during the 2014 open season.

There are some cautionary signs. Despite the influx of new subscribers, the age profile continues to skew older. Nearly half are 45 or older and 26 percent are over 55. Interest among the young remains largely unchanged over last year.

So is interest among middle income people who lack coverage. Enrollment has been dominated by those with the lowest incomes. HHS reports that 83 percent of people who have selected plans have incomes between 100 percent ($11,770) and 250 percent ($29,425) of the federal poverty level (FPL). Medicaid, meanwhile, has grown by nearly 20 percent since Obamacare was launched, swelling its ranks to 70 million. Roughly 22 percent of the U.S. population is now on Medicaid, despite the refusal of 22 states to expand their programs.