One thing I take from this article is that the things that give us that "Dreamy" feeling are (especially in tech) things that turn ordinarily mundane or complicated things into simple and easy things.

For example, the GUI basically turned accessing files (along with other commands) from mundane tasks into easy and attractive tasks, effectively making it far more useful by lowering the learning curve and lessening the complexity.

Movies are another example of turning something (plays) into a more exciting, entertaining, and accessible form.

It seems that what we consider "Dreamy" is simplicity. Perhaps that's why consumers gawk over Apple device's and describe them as dreamy. It makes one wonder, why is it that we consider simplicity so attractive?

One reason could be that it is purely natural human instinct. We do not like not understanding things and we constantly try to understand that which we don't. When people create things that increase other's ability to understand whatever product or service they are offering, they are creating desires, also known as dreams.

In a sense, that's the only reason that businesses exist, or at least it's the only reason businesses should exist.