I have no idea how PiCubeShop still have enough WRM 2019s lying around to chuck core magnets in them and still sell them. The WRM 2019 was the first WeiLong WRM released by MoYu, of course it was not originally called the WRM 2019 but named that later once the WRM 2020 and 2021 were released. Despite MoYu's endless stream of new 3x3 releases, there is still a significant number of good cubers who still like the original WRM, making the addition of core magnets more compelling. Once these sell out, they will probably never be available again.

Buy it here