I think you should also consider what it is you want this particular flashlight for. [...]
On the other hand, the Surefire itself is rather expensive for what you get, especially if you are planning on upgrading/modding it over time. The LED is not the absolute latest, and my understanding is that it is not even regulated (for sure in the xenon version, not completely sure about the LED version). The bulb/emitter will be discarded, you may well add different battery tubes (1x18650, 2x18650 for example), and a different tailcap.
So at that point you may wish you had bought a cheaper ("clone") alternative for the modding operations (great deal on a Cabela clone plus knife thrown in for 20 bucks, and the deal includes also a holster, and even 2 CR123A batteries - check the deals subforum in the market place).
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