Some other fake nendoroids are not that bad as long as its easy to assemble and disassemble, for me if its either fake or original I will gladly accept it (especially from my love ones) because thats makes me happy, seeing cute nendoroids. ^-^
Honestly, i would buy the original Nezuko because i really REALLY want the box to open but tanjiro and zenitsu i wouls just buy the fake ones because they looked fine