What changes in practice
A court price is never just the green rectangle.
The visible court is glass, steel, mesh, turf, lines, and lights. The expensive surprises are often quieter: excavation, drainage, freight, crane access, electrical runs, permits, inspections, and the work needed to make the court playable in that exact spot. A good cost guide keeps the shiny part and the hidden part in the same conversation.
Define what the price includes
A low quote can leave the hardest work outside the total. Ask what is included, excluded, estimated, and left for you to arrange.
Site conditions change the cost
Flat open land, tight urban access, coastal corrosion, wind exposure, drainage, and lighting rules can all change the budget. Record those conditions before comparing prices.