The problem is that the theaters that do employ techniques such as those listed here often go out of business far too quickly. People say they will attend, but they rarely do. To make some of these ideas a reality, sacrifices must be made. Usually this happens in sound or picture quality, comfort and cleanliness, or taste and selection in food and drinks. Then people just start going to the bigger theaters as a result. Even if the chains do charge outrageous amounts of cash, people still pay. It's sad, but true.