The problem with you getting one from your pet store is that in the short amount of time you will get to watch it before you make a decision is not necessarily enough time for issues such as parasites to become obvious. You will be better off than the average pet store buyer in that at least you'll know the one you pick out is eating.

Most BPs sold in pet stores are captive hatched. That means they take eggs from wild mothers and hatch them in captivity. That is WAY different than captive bred, which in most cases means the snake's ancestors have been in captivity for generations.

I'd go with a breeder. I've seen captive bred normal babies for as little as $15 at reptile shows. Also, many breeders will give away normal males for free, you just pay shipping.

As far as whether or not you should get one, you came to the wrong place if you wanted anything other than for us to talk you into it. As long as you are willing & able to put a little time, money, and effort in to setting up a proper enclosure, I'm sure you'll find owning a BP to be a very rewarding experience. The differences in size, build, temperament, and personality between corns and BPs complement each other very nicely. I'm very glad we own both.