It will never happen Janelle. Apart from the fact that the gallops would be the only ones with the cash to consider it, a moving grandstand would never satisfy safety requirements - the speed it would have to move, would not only make dining impractical, it would mean everybody would have to be seated (strapped in?) - all these considerations before the starter could release the horses and the sideshow attendant start 'the grandstand ride'
Circle racing is not a drawcard to on-course gallops as they are too far away. It is however for harness racing but people like variety which is why they complain about days where Menangle has nothing but mile races. Athletics has the perfect mix as they have straight and circle racing within viewing distance (where everybody seems to get their chance even when they are not run in lanes)
You talk about a leader having the advantage of dictating BUT they have the disadvantage of facing the breeze as opposed to the sit sprinter who takes cover
There isn't much 'stacking them up' racing nowadays, quite often the 2nd Q is the only one where they take a wee breather
If we had nothing but straight mile races in lanes, the current leader type of horse would probably win more often and be the only type that people would want to breed
I resurrected this thread by mentioning a couple of Menangle wins - I wasn't complaining about them, I think they show that circular tracks with long straights are pretty fair
At present circle racing still requires a great deal of analysis, if we had your form of racing just about anybody could be a 'race analyser'