Umm.. again you think 49ers don't have spares? When the worlds was here, every serious team had at least a complete spare hull and one mast per race day. Extra wings and plates etc..

Btw anyone know what a rowing shell is worth?
What about a horse? I doubt if show jumping is a cheap sport.. Then maybe it is.. Anyone know what it costs to buy and train a jumper and feed it as well as pay to keep it healthy?
Even we could talk about shooting.. What is a top of the line shotgun worth? then add cartridges for training etc? Cant be cheap either.. I guess a small bore will be cheap then I don't know..
Then we can add the cost of transport and living etc..

Fact is every elite athlete is looking for an edge.. No matter what that edge is or how small, even if its psychological.. So I suspect at that level in every sport one will find, they spend whatever they "have to", to gain that edge and elusive gold medal..