Vanity, sure.
There’s no way around it. Blasted/stonewashed/brushed titanium just appeals to me.
I’m quite satisfied with the gear I have already, but I would probably spend the money if I could find the “right” titanium light.

I prefer AAA lights with a warmer tint emitter and button activation. My most carried light in 2018 is by far the Lumintop Tool Ti w/ Nichia emitter. It has its quirks, but size, weight and output make it a great EDC light that is never to bulky to carry. The tail button is a bit too exposed, and it sometimes activates in my pocket, but not as often as my twisties. I think a equally good or slightly better light in a matt titanium finish would be a nice addition to my EDC, but the ones I have found are high end / semi customs in the hundreds of dollar range. That’s not happening, so if anyone know an affordable alternative that I’ve missed, I’ll be very interested to hear about it.