I think it's amazing to buy a snake when it's small and see it grow, but you can always do the same with an adult or sub adult. The snake can still get used to your scent, and still seem like you've raised it ever since it was a baby. I don't just buy snakes for breeding, I buy them because I love to care for snakes and not to make money off of them. Even though I'm going to breed my BPs next year and sell most of the babies, I still will love each and every one of the snakes and the snakes who made it happen. I just think it would be nice to buy a big snake, since no one really likes purchasing adults but for me I wouldn't mind at all. I would treat that adult like I've had it forever. I treat all of my snakes the same, and in return I have good feeders and docile snakes.