Just wondering if any of you guys had noticed cars with an HID bulb out?

I first noticed one about 2 months back. A big Merc. First one I'd seen. Then a few weeks back I saw an Laguna and then an R32 later the same day, both with a light out.

Just kinda curious, I thought the they bulbs were supposed to last the lifetime of the car. Of course, it might not have been the bulb and I might have been lucky/unlucky to have seen 2 on the same day.

Anyone else noticed cars with an HID out?