OP Dutch Harness Horses are usually very forward and very TROT. People who haven’t dealt with this can be intimidated by it.
And everyone else, no, that price is not outrageous for this breed. The Amish are regularly importing stallions from Europe and broodmares can and do sell for 5 figures at public auction. The Harness Horse keuring was by far the largest KWPN keuring in North America this year, even though many Dutch Harness Horse breeders aren’t even registering their stock with the KWPN-NA (the American Dutch Harness Horse Association is the alternate many are using).