... we live in a day and age where people do not wear togas and capes any more, and what we have instead of knights in mail and royalty in pomp are soldiers in drab camo and politicians in drab three-piece suits. We live in a drab age. The real answer is the same reason why the sword is the favored weapon of the galactic empire, and why space princesses are more fun to rescue from ninja vampire space pirates than the daughter of a space senator.
We need (one hopes only in moderate amounts) a little color, gaiety, mystery and romance, to remind us of what we all secretly know.
We all secretly know that there is something cooler than the real world out there, somewhere. If the real world satisfied the human heart, we would all read newspapers and reports on potato crop production in the Ukraine, and these real things would never bore us.
If the human heart were satisfied with the world, then every day would be Monday, and all trains would be freight trains, and never the circus train.
Hollywood? You produce a film like the one that Mr. Wright showed a clip of on his post and I will see it, and drag along the wife as well.