My Forester runs the low beams for the DRL's, so it eats bulbs more than any car I've had in recent memory, and I get a couple years out of the headlamp bulbs. Oddly, in the seven years I've owned it, the only non-headlamp bulb I've replaced was a brake light that went out a few weeks ago.
Oh, and thanks Subaru for locating the battery RIGHT up against the driver's headlamp bulb and the engine air intake RIGHT up against the passenger side. Nice. I need to scrape the skin off my knuckles periodically...