Plan to spend at least $70,000 for a high-end home theater. At this price point, you’re paying for advanced components, including flagship projectors, reference-grade speakers, dedicated subwoofers, robust A/V receivers, and professional installation. These features deliver outstanding picture quality, rich surround sound, and a polished finish. Costs climb quickly when you add custom seating, acoustic treatments, and smart-home integration, so ask your installer for a detailed estimate before committing.