Kinda suprising? With the Switch being available, not to mention modded wiis and pc emulation, NES Classic took the top spot for most units sold. Ps4 still dominated in dollar sales, with the PS4 at a $400 price point, and the NES classic at $60.
After being released a few years back, the NES Classic was sold out in no time, and scalpers were selling them for 1k a pop. This may have been the cause of the 2018 re-release. NES is back in action with a plethora of titles to play, way before graphics and prettiness hindered gameplay. There are so many classic and replayable games on this thing, get yours now!