He might've meant 'halogen' headlights, as in replacement bulbs. Most vehicles I see with them just annoy me, especially on the highway at night. They're coming at me and I'm all, "Fugger won't torn off his brights" so I give mine a flicker as a reminder. Then it turns out they're actually the lowbeams and I get even more blinded by the sudden twin beams of artificial sun evaporating my retinas.
But anyways, since they're just replacement bulbs, they'd probably cost, say, $5 more than standard replacements, and they're a piece of cake to replace, providing you bought the same type.