I love Nixie Tubes -- you are absolutely right that it gives the right vintage feel as an add-on to an old truck. Funny, though, when I've seen the Nixie tube watches I feel like they look very futuristic!!!
@Nnanci: what are some of the modern day practical uses of nixie tubes
Before 7-segment LED displays came on the scene, Nixie tubes were the height of technology. Today, I don't know about "practical uses of Nixie tubes," I just knwo that they look really cool and retro. For example, I LOVE my nixie-tube watch from Cathode Corner