Soundwave on 16 August 2014
Even the PSP to be honest, once the hype of the first few years wore off where it was supposed to be the next "iPod" , its sales were mediocre in North America and in Japan it was saved by the phenom of Monster Hunter which ensured a steady stream of Japanese support.
The decline was already on before the Vita even launched. Selling a game handheld to the audience Sony specializes in -- the 16-35 year old male is a dead end. They don't want a game handheld, their smartphone and their wallet/keys are the only thing they want in their pocket.
