I think your main point is wrong. It might be that some of the technological advancements are still (73 years after it was written) unrealistic, but they are not what makes the world 'bad': They are just tools to bring the ideas about caste and class to their extremes, and make them clearer that way.

I would agree though that not all aspects of the 'dystopian world' are bad, and it's very interesting to read his utopian book Island, that definitely embraces drug and hedonism, but in a different way.