Head Torches

Up until today, I was convinced that my old Black Diamond "Ion" was the best head torch available in its class (I think Corvus uses the same one). Keep in mind that what's important for me with a head torch is size, weight and cost. I'm not concerned if it doesn't light up the entire campsite all at once - all I need is enough to cook by, and to settle into my tent, etc.
For my old Ion, I paid a mere $25 for the tiny light weight, 2 LED torch. It had a simple elastic band with a tightening toggle, which never needs adjusting for your head size after the first time (the elastic is enough to hold such a tiny device in place).
Unfortunately, when packing for my last walk, I found that my head torch was missing, so I had to borrow my wife's (fancier with more functions - and more expensive). I think I must have left mine in Ironstone Hut on my previous walk.
In any case, today I finally replaced my old head torch.
However, this time around I found something even better than my old Ion: The new Black Diamond "Ion". Yes, that's right. The new model cost $35, but for my needs it is still the best value for money. The new model has only 1 LED (so presumably uses less power), but has a much more tightly focused beam (very tightly focused, which may not suit some people). The new model also has a high and low function (hold the button down for a bit to turn on/off, and press quickly to toggle between high and low).
Oh, and the battery is included (a single standard 6v battery - the one that looks like half a AAA battery).
Here's a couple of images showing the old and new Ions...
Old Ion:

New Ion:

Sure beats my first head torch, which was a large incandescent Petzl with a huge battery back on the back of the head.
What do other people use, and why?
For my old Ion, I paid a mere $25 for the tiny light weight, 2 LED torch. It had a simple elastic band with a tightening toggle, which never needs adjusting for your head size after the first time (the elastic is enough to hold such a tiny device in place).
Unfortunately, when packing for my last walk, I found that my head torch was missing, so I had to borrow my wife's (fancier with more functions - and more expensive). I think I must have left mine in Ironstone Hut on my previous walk.
In any case, today I finally replaced my old head torch.
However, this time around I found something even better than my old Ion: The new Black Diamond "Ion". Yes, that's right. The new model cost $35, but for my needs it is still the best value for money. The new model has only 1 LED (so presumably uses less power), but has a much more tightly focused beam (very tightly focused, which may not suit some people). The new model also has a high and low function (hold the button down for a bit to turn on/off, and press quickly to toggle between high and low).
Oh, and the battery is included (a single standard 6v battery - the one that looks like half a AAA battery).
Here's a couple of images showing the old and new Ions...
Old Ion:

New Ion:

Sure beats my first head torch, which was a large incandescent Petzl with a huge battery back on the back of the head.
What do other people use, and why?