I bought a petzel. I had a few over the years. I was sick of buying batteries that cost more then the head lamp. So I bought one that runs on two basic triple a's. I keep two as back up's in my pack so I am always good. Also it has 3 modes. Bright, dim and a strobe.
Like people have said, red or green is great for getting to your spot in the morning. Not only will it spook less game but it won't affect your eyesight and it'll save precious battery life for when you need to follow a blood trail or field dress something at night. Definitely worth it.
One more thing: if you can get a headlamp with a lock or hold button that prevents the lamp from turning on while it gets shuffled around your pack or pocket you should do it.
Streamlight Buckmaster. You can get one from Gander for under $30. Two levels of green and then a pretty good regular light. I walk 2 tracks with the white light. I change to green when dropping down trails to my stands. The low level green is great for climbing and getting situated in the stand.
I too like the Streamlight Buckmaster, but currently haven't been using a headlamp for hunting. I also like the Black Diamond lights with the red, and clean white light. Any decent light that uses practical batteries such as "AA", or "AAA" will work as long as you can adjust brightness, and perhaps have a green, or red light so as not to ruin your night vision, and spook game.
If it's not too late , the best headlamp I've owned for hunting is my XK Glow. Its green in color. The selling points are that it's rechargeable and the ability to narrow (for distance) or widen the beam. With the most powerful setting and a narrow beam, I can light up a deer at 100 yrs. I was skeptical of the light at first b/c I had never heard of this brand of light. On my 3rd season and going strong. Even comes with a car charger so you can charge to and from hunting. Good luck hunting .