I didn't dream for a little while when I first came here, either. They seem to come in waves, so I would give it some time. And magic really is sometimes ... science that we don't understand yet. In my dream world we have something called 'vigors' which give people magical abilities like the ability to shoot fire from your hands, shock things, or even possess mechanical objects!
But it's actually based on some kind of science that Mr. Fink invented, and not magic at all. In many ways, Columbia is far ahead of its time.
As for better or worse, I don't really know. I think that changes from person to person.