A motor racing spectator watches a fraction of the circuit directly. Where a grandstand sits determines which fraction, and the choice involves real trade-offs.
Braking zones are the premium locations
Overtaking happens where cars decelerate heavily, which makes the end of a long straight the most valuable viewing position on any circuit.
Those locations are also the highest risk, requiring greater run-off and larger barrier structures, which pushes grandstands further back.
The result is a trade between proximity and action: the best view of overtaking is usually taken from further away than a mid-corner seat would be.
Approach visibility matters more than people expect
Seeing cars for several seconds before they arrive changes the experience substantially. A stand facing a long approach delivers more spectacle than one at a blind corner.
This is why elevated stands are prized. Height buys sightline distance in both directions along the circuit.
Circuits built into natural terrain gain this cheaply, which is one reason older American road courses retain strong reputations among spectators.
Sound and proximity are their own product
Some positions offer little overtaking but exceptional sensory experience: cars at maximum speed, or heavy braking directly in front of a barrier.
Promoters price these differently, recognizing that a share of spectators values proximity over the ability to follow the race.
General admission areas often occupy exactly these positions, which is why they remain popular despite offering a worse view of the result.
Screens carry the rest of the lap
No spectator can follow a race from one position, so large screens and commentary are structural rather than supplementary.
Screen placement is planned alongside grandstand siting, and a stand without a screen in its field of view is a recognized design failure.
Radio commentary distributed across the circuit does the same job for standing areas where screens cannot be placed.
Movement between positions is part of the day
Many circuits sell access that allows movement, and spectators use it, watching different phases of a race from different points.
That behavior shapes the infrastructure: bridges, tunnels and internal paths exist because a meaningful share of the crowd relocates during the day.
It also means grandstand siting is judged as a set rather than individually. A circuit needs positions that are good for different reasons rather than several that are good in the same way.

