Why isn't online media profitable? Rejecting the question, Tim Armstrong tells OMMA Global attendees: "I'd be very careful saying content is not profitable online." That said, the argument "works at the aggregate," but breaks down when one factors in the approach of legacy-laden media companies, according to Armstrong. They are trying to pay for "unions, printing plants, trucks driving around with gas" with online ad revenue, according to Armstrong. The "cost structure's a 100-times the size" than it should be.