Probably most have gone to LED by now. But some still use their stock Maglites or SureFire 6P so it stands to reason that some are being used. Lack of parts would probably be cause for them to be retired by those still using them.
I actually have a couple Stingers and an UltraStinger. They could all use batteries. I have spare bulbs and extra bezels. I also have a couple of those FiveMega adapters that allow for higher capacity cells with a different bulb. It's been so long, I forget all the details.
i was considering posting them on B/S/T, but I'm unsure how to price them.