Personally, I'm surprised 3-D televisions still exist now, just two years after debuting on the market. Of the seven things listed here, this is the fad of all fads, and is one of the primary reasons why Best Buy, which bet big on 3-D TVs, has been in a downward spiral in recent months. There are plenty of reasons that 3-D TVs are staying out of people's homes, including high price points, the need for ridiculous glasses, and frankly, very little content is currently available in 3-D. Lower 3-D set prices could bring a short revival of sales in the future, but the likelihood of 3-D content expanding dramatically amid already tepid sales makes this technology's survival a long shot.