If you had any lingering doubts, a couple of scientists have concluded that sniping works, using real equations and everything.

http://www.usatoday.com/tech/science/columnist/2006-06-...hysics-of-ebay_x.htm

http://www.newscientist.com/article/dn9398-mathematicia...to-win-on-ebay-.html

http://www.webpronews.com/topnews/topnews/wpn-60-200606...pingWorksOneBay.html

Interesting data and analysis to digest. Thanks for sharing this.