The primary reason there is no new 3D TV technology on the market is due to the decline in consumer interest and the high cost of production. According to a report by Statista, the global 3D TV market has seen a significant decrease in sales since its peak in 2013. This decline can be attributed to several factors, including the lack of compelling content, the inconvenience of wearing 3D glasses, and the high cost of manufacturing 3D TVs.

Firstly, the lack of compelling 3D content has been a major deterrent for consumers. While there were some initial successes with 3D movies and sports events, the novelty quickly wore off as viewers found the additional cost and inconvenience of wearing 3D glasses to be outweighed by the limited benefits. The lack of widespread support from content creators and distributors further contributed to the lack of interest in 3D TV.

Secondly, the inconvenience of wearing 3D glasses has been a persistent issue. Many consumers find the glasses uncomfortable, and the need to wear them for extended periods can be cumbersome. This inconvenience has been compounded by the fact that 3D glasses are often required for each viewer, adding to the overall cost and complexity of the viewing experience.

Lastly, the high cost of manufacturing 3D TVs has been a significant barrier to widespread adoption. The technology required to produce 3D TVs is more complex and expensive than traditional 2D TVs, which has made it difficult for manufacturers to offer 3D TVs at competitive prices. This has limited the market potential for 3D TVs and contributed to the overall decline in sales.

In conclusion, the lack of new 3D TV technology is primarily due to the decline in consumer interest, the inconvenience of wearing 3D glasses, and the high cost of production. These factors have combined to create a market that is no longer viable for manufacturers and content creators alike.