I do many different sports and I have all my life, and based on that I would have to consider robotics a sport. I mean, after running track, playing soccer, volleyball, softball, doing cheerleading, dance, and gymnastics over the course of my life, I can honestly say that I put more dedication into robotics than any of these. In addition, to all of you who argue that its not a sport because its not "building muscle," Robotics build season takes a much tougher physical toll on me than any of the other sports i play do (sleep deprivation takes a toll on you too, people!)
If NASCAR is a sport, so is FIRST. Heck, if cheerleading is a sport, so is FIRST (This was not meant to be offensive to any cheerleaders!

as i mentioned previously, i've been a cheerleader before too!)