This article on the supply chain details why many fish die on the way to the suppliers. Seems like liveaquaria is more aware of the conservation issues.
Somehow I omitted the link to the article but yes that was it. The article is entitled "An Inside Look at the Marine Fish Industry: Collection and Handling". It would seem liveaquaria is more aware of the whole issue of reef conservation and tries ot deal with responsible suppliers.
even when i was friends with my old lfs owner they had losse of almost half of everything they ordered the mortality rate sucks. the fish are just put under to much stress