A guy I work with saw Man of Steel and came away extremely disappointed. He thought it was going to be really good, too, so he was taken aback at how much he disliked it. That kind of bummed me out, because the trailers are good.
As for the reboot cycle, it has become appallingly fast. But I don't believe Hollywood has run out of ideas. They simply discard those ideas in favor of known quantities. A superhero movie, a sequel, or something adapted from another medium is a good bet, while an original movie is seen as a liability, not a potential hit. When it all goes bad, Studio Guy A can say "Well, we had so and so A list actor, and the movie was based on a property with a quantifiable audience. It's not my fault." In the last ten years, more than ever, choice of projects to make is based on a calculated risk. That's why you get $250 million superhero movies, kids' animated movies, cheap comedies, indie dramas and horror flicks, and that's it. There isn't a place anymore for the mid-budget movie unless it's got a clear Oscar pedigree.
As always, people need to support the kind of movie they want to see. If people keep going to see Marvel movies and the latest Michael Bay atrocity in staggering numbers, that's what they're going to get more of.