A few years ago I picked up a Surefire A2 here. Despite being a huge fan of LED lighting technology for its low power consumption and interesting technology, I really enjoyed the high CRI and warm light from a real incandescent. Sadly, even I have now made a complete transition to LED.
Why?
More models available: New incandescent flashlights are not really released any more due to low consumer demand.
Lower power consumption: LED flashlights are much more efficient.
More battery options: The best incandescent flashlights use CR123A cells. I no longer want to use CR123A cells so I have migrated completely to lights that use lithium ion cells and NiMH cells. It is very difficult to get a working rechargeable setup for most incandescent flashlights. Running Surefire incandescent lights from lithium ion cells usually requires you to buy a special lamp assembly and/or rebore the light. Too much hassle for me.
Lower cost of ownership: I don't mind buying lamp assemblies (although sometimes they are too expensive in my opinion), but I do mind being forced to buy primary CR123A cells. A decent rechargeable setup is expensive but will save you money in the long run - plus after your initial investment in a charger you can buy additional cells for additional lights more cheaply.
Neutral white tint: It is possible to get some very nice high power LED flashlights with a neutral white emitter. This mostly satisfies my desire for light quality - although I look forward to high CRI emitters becoming mainstream.
My A2 has been retired, and I am quite upset about that
What we need is a quality, affordable incandescent light that can run from a single 18650 (probably IMR chemistry) cell with regulated output like the surefire A2. I'd buy one!