Some people do go from horse to horse, that is true, but I think that just means they found the wrong one to begin with. You are doing it the smart way by having the vet checks and really making sure you are getting a good sound horse. It is a very frustrating experience trying to buy a horse. I went through it with my sister. At one point, we felt like all the sound and decent horses that matched her ability had packed up and moved out of North Carolina. We kept at it though, and now she has a horse that is perfect for her. You will find that horse for you, too. Just don't give up and don't settle. Once you find him, it will all have been worth it.