There's a certain question that always has a slightly different answer regardless of who you ask.
"What is Steampunk?"
To some it's simply "like, you know....old stuff with gears and rayguns and goggles." And techincally they're not wrong. A bit vague, maybe. But it's a sufficient answer for some people.
To others, however, it's far more than that. Some see it as a way to escape the normal day-in, day-out routines that we're all so accustomed to. Some see it as a business opportunity and are able to make a career out of creating/selling various Steampunk accessories and whatnot. Then there's people like myself who see it as a vessel for experiencing new and different things. Some of my favorite bands and most memorable performances came out of Steampunk events and it frightens me to think about all the things I could have missed out on had I just decided to stay home.
What is Steampunk? The truth is I don't really care. What I care about is having a good time with my friends, meeting new people, and watching incredible performances. That sounds like a suitable definition to me.