A Summer Olympic-winning dressage horse costs well over a million dollars.

[sir pball]

6. True, but the lessons to ride those horses aren't cheap either.

My niece is into competitive riding, and while my sister doesn't own the horse, the lessons alone are kind of finanically painful. Even if your rider doesn't own your horse, you've probably spent six figures training them up.

Point being, equestrianism is by a long shot the most expensive Olympic sport; on any end ain't nobody but the most privileged doing it.