I'm sure what I'm used to has something to do with it. I've seen the havoc that can be wreaked using punch cards, and after 2000 don't understand why they'd still be in use if there were any doubt about accuracy (I suppose this is too much of an idealist's view).

Levers: how can I know that the levers I pull actually vote for who I want? I'm probably being suspicious here, but I could imagine (far too easily, unfortunately) someone messing with the machines just enough so that, say 5% of the X votes go to Y. And there'd be no way to double-check this.

I suppose I'm a bit of a dinosaur on this one.