And how can it be that a light from 2008 is still the studliest commercially available flashlight around? Or am i missing something?
Well, there's not much of a demographic willing to pay well over $1,000 for a flashlight....so, makers don't have much incentive to develop new products, as there's not enough potential customer base to provide an adequate ROI.
Add to it that the light has less than 45 min of run time on high, and is a bit large/heavy to clip to your hat brim/pocket, etc....and the user demographic becomes narrowed to flashaholics with sufficient disposable income, and those in disaster response/military roles where recharging is an option, etc. Add in the economic downturn that hit ~ 2008, and there's not that much interest in new ventures compared to say BEFORE 2008. In 2013, sure, things are getting back on track.
An HID can create a very small, very bright emission source that LED's will probably never be able to match point for point. Generally, the smaller and brighter the emission source, the further a light can throw.
So, once developed, it simply works very well. There's not too many ways to make it work BETTER, more watts means less run time and/or a larger power source/need for additional heat sinking, perhaps new battery technology, etc, but, a larger head and/or battery reduces portability/adds weight, and so forth.
So, a new HID that worked better, so far, would not be better ENOUGH to make people spend $ on it, given current technology/economic conditions.
The LED's came in like the rodents when the Dinosaurs got wobbly. Much better portability and run time, prices well below the Polarion's price points, etc. Typically lower overall lumens, and, range, but, enough of both, given the price, and the LED gained more and more market share.