Sales of Nintendo's glasses-free 3D handheld in Japan were halved last week, a predictable consequence of the system's imminent 40 per cent price cut. Andriasang reports that used sales, however, have doubled, as second-hand retailers slashed prices immediately following the announcement. It appears that gamers with an eye for a bargain have opted to purchase a 3DS used at a higher price than a new one will cost in a week's time, in order to get their hands on the 20 classic games offered to early adopters as part of the Ambassador programme.