At 9:55 a.m., hundreds of parents and kids lined up outside the youth pavilion at TPC Deere Run, waiting in the sun for the 10 a.m. opening.

I don't mean kids such as 3-year-old Gideon Clark of Waterloo, who scampered into the towering, plush and new 7290R that was available for pretend rides. Clark's mom nearly had to pry him out of ...