This is probably late, but my first horse was only 5 years old and only $1000. She wasn't really trained so I had to do most of that which just meant alot of riding, and I like riding alot so it worked out. She turned out to be the best thing in the world. Anyhow its like picking blindly in a jar, no matter what the person tells you or the price of the horse, you get whatever you end up with. It could be a $25,000 horse, completely trained and have a hidden problem. My best advice is to go through trainers and people of good reputations in the horse world and you'll do fine.