Science can be fun
We spend so much time discussing technology as a means of making money and organizing people and information that it's easy to forget how exciting and ennobling it can be.
I've got nothing against making money or organizing people and information, but maybe when your kids ask what's so great about technology you should send them to the NASA site covering the Phoenix lander on Mars.
You've monetized your inner geek, and that's OK. Give the little guy a break this weekend and remember what you loved about this stuff in the first place.
Lots more video here.