The Obama Administration enabled the 24-hour extension because of "high demand and the fact that consumers may be enrolling from multiple time zones," said Julie Bataille, Centers for Medicare and Medicaid Services spokesperson.
So far, Monday was a record day for signups, the administration said. "Thousands visiting and enrolling now. Queuing deployed to help keep site smooth for users," it said in a separate tweet. The electronic queue sends people a message asking them to wait and offering to email them when it's their turn.
Experience shows many Americans will wait until the last possible minute to buy health insurance. There’s nothing like a deadline to focus the mind. And in this case, experience also shows that people who waited may have fared better than people who tried to sign up early, although really last-minute users may have to line up.