I believe that the selective breeding of constrictors in captivity for so many, many years is why I get the feeling that they're "happier" in captivity than hots. I am very opposed to keeping any WC snake, or ones that haven't been reproduced in captivity for more than a few generations. The vast majority of the captive hots I've seen and heard about are WC or whose parents or grandparents were WC. Correct me I'm wrong, but I get the feeling that they're very difficult to breed.
For me at least, it's simply the keeping of animals that are not completely adjusted to captivity that I do not support.
(I mean no offense to those of you who keep hots, it's just not my thing.)