Brian, Emeralds have been bred with Amazons and the offspring are incredible! Alot of people dont beleive in hybrids, but i am totally for them if done in captivity and done properly. Another arboreal hybrid is the "Carpondro" which is a Jungle Carpet Python bred with a Green Tree Python. The latter being one of my favorite hybrids. If someone is going to keep hybrids then they should not be bred back into a pure bloodline, hybrid owners should respect the creation in which they are keeping and show enough respect not to faulty up pure bloodlines for the sake of making a few dollars. But hybrids sold as hybrids are a ok with me!
I mean realisticly, it is hard enough to get something imported into the country, let alone get a hybrid exported back into the wild.. IMO.