PSVita Slider Prototype Unit with HDMI Output running FW 0.990 now on sale on eBay! - This prototype unit can be yours for the measly sum of... $20,000! - Wololo.net
Someone is selling this rare PS Vita prototype on eBay for US$19,999 - Entertainment
The PlayStation Vita might be dead, but a rare prototype is being sold for $19,999 - Neowin
A prototype of PS Vita goes online – phoneia
PlayStation Vita DEM-3000 Prototype appears on eBay : r/vita
PlayStation Vita prototype Archives - Game Freaks 365