Join Date: Aug 2009
Location: New South Wales, Australia
A lot of people ask for more than their horse is worth, and a lot of horses sell for under their ticketed price, so don't purely judge the market on what you see on websites, and if you don't think something is worth it, don't buy it.
I'd be reluctant to be an 18 year old, regardless of training, who knows what will happen at that age.
Being a good rider, or having a good horse, has nothing to do with the heights they can jump. I understand that you'll likely want to compete, but consider working on your riding for a couple of years. I think you'd be better off buying an average horse with good temperament and training, and even if you don't win you'll be safe and learn heaps, rather than buying a good horse with potential but too hot or too untrained, and not being able to do anything with it.
Sometimes instructors focus too much on the competition and quality of the horse, rather than it's safeness and how fun it will be for the rider. So really think about what you want, and what the horse market seems like.