The cost for THAT wing is probably in that range, but if you are asking about prices for "volume production" then it will be lower.
The cost of an A-class mast is around 4000-4500 dollar and that is a rather simple structure compared to a rigid wing. A price guess would be between 10 - 20 000 dollars for a rigid wing in volume prodution.
Some concerns with a rigid wing is how to handle the boat on land (you need to take down the mast after each sail) and if it survives a pitchpole.
