I'd say geeky at the very least. Light sabers are basically a two-handed weapon, like a bastard sword or great sword, or even a katana or bokken. From a theatrical point of view, I can see why people would have a fascination with this.
Okay, these people make Renaissance Fair people look normal! That being said, those fight clips were pretty damned awesome. I liked how the purple ones were shortened more like wakizashi which would be easier to handle one handed.
Lol, if thats dorky then I will join the ranks of dorks eventually. I found a site that makes good Lightsaber models that can actually be used in stage combat (with obvious care since their NOT industructable). I will get one eventually, I even have a little jar I put money in to save for it lol.