Although CES attendees were able to get their hands on a real physical product, Project Valerie's still only a concept device, and as such you probably won't be able to grab one yourself for a while (if at all). Then again, Razer's got a history of bringing insane concept devices to market, so who knows?
Update 1/9/17: Thieves stole two of the three-screen Razer prototype laptops from the company's CES booth, according to a Facebook post by Razer CEO Min-Liang Tan. "We treat theft/larceny, and if relevant to this case, industrial espionage, very seriously – it is cheating, and cheating doesn’t sit well with us," he wrote. "If you were at the show and/or if you can provide us any information, please do reach out to us at email@example.com – all information provided will be kept in the strictest of confidence."