One of the biggest turn-offs also for the Zip-exe archive is that a lot of people like to be able to open up archives, and see first, what they are extracting. It's one thing to tell people what is inside of it, but it is quite another to actually "see" it before you just click away with it.
I have no problem either way, as I have faith and trust in all my fellow H2PC enthusiasts. However, a vast majority of people are usually wary of self extracting things.