Very few other sports use a rolling start. Almost every sport I can think off use standing starts: be it horse racing, olympic swimming, marathon running, outrigger canoeing. Only yachting use a moving start...
Understandably, the tradition in America is having rolling starts. But they are (IMHO) significantly less compelling that having the grid line-up, revving their engines in a rising crescendo, to wait for the lights to go out.
The whole point of a race is to start (i.e. to set into motion). Why do it with momentum? A standing start also allows for a more orchestrated line-up. Currently only the first few rows of the grid run abreast to a green flag. The rest of the grid is generally an utter mess (especially with Champcar).
Thus, I would like to see standing starts at all tracks (including at Indy). I understand this will face serious opposition and ridicule form many here. So perhaps we could find a middle-ground by having standing starts only at road and streets courses.