Promote increases in the bat population and other beneficial insects that eat mosquitoes? There's just not enough cases for me to warrant the spraying. You can protect yourself somewhat from them with proper clothing and/or body sprays as well. If you want to personally spray your own yard, go for it.
I think the skeeter boom around here is more due to the overall trend for dewy summers and much above normal rainfall. Yeah, I know some of you need rain right now, but region wide it's been a freshet from the skies for the last 20 years. We need a few years like the 60s or 80s with some cracking scorched earth.