Another major inconvenience is the cost, since obtaining the common stereoscopic technique in home environment requires a capable TV set, as well as at least one pair of 3D glasses. According to the statistics gathered by The NPD Group of New York, the price of a 3D LCD TV set as of early 2011 was three times higher than that of a comparable 2D set. The price of a 3D plasma set was over two times higher than that of a 2D one. (Earlier, the differences were even more striking – respectively, almost 5 and 4 times higher.) The price differential of comparable equipment in Europe was even greater.
(Source: “Press Release: Awareness of 3D TVs and Blu-ray Players Grows”, by The NPD Group /
The stereoscopic glasses themselves are highly expensive as well. According to the PriceGrabber™ service, in December 2011, the average price of a pair of active stereoscopic glasses, from a renowned manufacturer, and without any temporary discounts, was US$100. Some models can cost as high as US$248 or more. Furthermore, active stereoscopic glasses use up electricity, and while their nominal power consumption is relatively low (ca. 40W when turned on, ca. 2W when in stand-by mode), in time it too may build up to create additional costs.
(Source: PriceGrabber,

3D-ET™ eliminates any such costs in the simplest way possible – by not requiring extra equipment or hardware. It is based only on software solutions and ingenuity.
However, even if the pricing and the inconvenience were to be ignored, there is still an even more alarming shortcoming to the 3D technique based on the use of stereoscopic glasses: namely, its potentially adverse effects on human health.