You will get the same horse at three years old for less than half the price. If you can't afford a horse, go to the meatworks. That's where I got Joey. I have changed the quotes a little to protect myself from the potential wrath of the originators of the comments, and they are not pejorative. They just help to illustrate the environment within which we operate.
All breeds probably have the same issues to face.
Every now and then, one breeder, or some strains become popular and highly sought after and prices rise because of the law of supply and demand. Maybe we should take some lessons from the New Zealand Dairy Board and set up a cooperative venture to promote the Kiwi bred horse. One always balances the pleasure one has in activities like this against the costs. The pleasure is indeed high. Maybe it is worth it after all.