This matches my voting philosophy, too @baerdric. I wrote a post about it 2 months ago (payout is over, so I guess it´s ok if I drop the link here).
Before I actually vote for a post I ask myself just a single question: "Are there many other users who might be interested in this post?" If I´m answering to myself "Yes, probably many" I hit the button. Otherwise, I move on to the next post.