Actually, 3D compatibility will just be a new feature of many of the HDTVs entering the marketplace in 2010. As such, it will not necessarily increase the cost of production of the TVs any more than another feature (such as 120Hz rate in LCD TVs) would. However, the feature is being included on the higher end models offered by manufacturers. Those models often also include a host of other top features such as super thin design, increased black levels, better processing engines, high Hz rate, and others. For this reason, the TVs with 3D compatibility will appear more expensive, but it's not entirely due to the addition of the 3D capability.