There's a kind of poetic aspect to inert gas. And remember, first of all, they were completely unknown a hundred years earlier. We just didn't know about them. And then when they were discovered in the atmosphere, the idea that this is a material that would breathe in and exhale and becomes part of us for a while made it even more intriguing. The names, the Greek names, are interesting, too - if you translate neon, xenon and so forth are kind of interesting.