Beautiful, full spectrum 100CRI light that the very best high CRI LED's still cannot completely match
Incandescent's also throw very well compared to most LED's of similar output and size.
With the advent of Li-ion cells, LumensFactory bulbs, and Bi-pin adapters, this has helped Incans from going completely obsolete
Nostalgia probably plays a big part with the small group of guys that occupy this section of the forums.
One of the biggest problems, I think, with people new to the hobby is when they hear "Incandescent" they automatically get a mental picture of the traditional dim, yellow, unfocused Maglite type beam.
Once you see a quality, hot driven xenon/halogen lamp pushed by Li-ion cells to 3325k to 3350K, its hard to go back to most LED's.