I'm 25 years old and I would be hard pressed to find anyone I know that has even seen it let a lone someone that would be excited for a sequel
To be honest, you are has nothing to do with it here. I'm 25 myself and will probably have to drag my wife kicking and screaming when it comes out (don't worry, she'll be ok, her dad's a geek too!). I remember the first time I saw the original, and remember watching it repeatedly after that for a while.
Besides, Gabe and Tycho are just into their thirties, and we know how they feel about tron. http://penny-arcade.com/comic/2005/11/14/