HID is pretty much weird hobbyist stuff, it's not very practical; you can't turn it on/off rapidly, you have to wait for it to warm up to full output, the beam is dangerously hot near the reflector, you have to wear gloves to handle the bulb, etc. Monstrous floody spill while still lighting up things a quarter mile away never gets old though..
I totally disagree that HID lights are hobbyist stuff. Please show me one LED flashlight that can run full powered for more than 15 minutes before the thermal circuit cuts the power back to keep the LED from overheating.
I've probably got 10 different HID lights. Of those 10, only 2 have a significant warm up, but even then, less than 10 seconds to full output.
The longest warm up light I've got is the FireFoxes FF4. It's the same size as the TM15. The FF4 takes about 10 seconds to stabilize indicted by the light color.
My Polarion PH40, and the Polarion Night Reaper, from the push of the button developed full brightness in less than 2 seconds. The great thing is that the lights put out 3000 and 5000 lumens till the battery goes flat.
As for bulb handling and replacement, IMO, it's a non-issue.
The only HID/short ARC light I've had to replace a bulb on was one of the Maxa Beam generation 2 lights when used with the higher powered lithium ion pack and latching high.
The Xeononics Night Hunter 2 lights aren't a good deal since Xeononics went bust a few months back and the Night Hunter 2 is an obsolete light with crappy batteries. Good luck finding replacements. Yep, it looks like a Mag Light on steroids, but not a very good light. The Night Hunter 3 corrected the battery issue and changed the appearance of the light.
The Night Hunter 1 if a newer model is a pretty nice light provided it's NiMH or lithium powered. They're easy enough to make a lithium battery pack for or selecting the right RC pack and use a hobby charger.
My two favorites are the Maxa Beam and the Night Hunter 1 for the beam adjustability. Going from pin point to wide is either a twist of the wrist or the push of a button. Try that with a LED?