You rushed out, you got there early, you stood in line - and you bought Windows Vista, or the original Apple iPhone, or a big HD-DVD collection. And then the roof caved in.
The HD DVD Format (2008)
HD DVD is the quintessential cautionary tale against picking sides in a format war. The fight with Blu-ray barely lasted two years, beginning with the debut of Toshiba's first HD DVD player in March 2006 and ending with the company's abandoning the format in February 2008. HD DVD adopters were left with worthless hardware and an obsolete movie library.
T-Mobile G1 (2008)
Are you a Google diehard who brags about owning the first Android phone, the T-Mobile G1? Congratulations, you're also stuck with a smartphone that can't officially upgrade past Android 1.6. More upgrades are technically possible - hackers have even equipped their G1 handsets with Android 3.0 (Honeycomb) - but T-Mobile and HTC, the maker of many Android phones, probably are hoping you'll just buy a new phone.
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