while the Amiga Mini probably sold 50,000 units and it is just emulation, has no AmigaOS and isn't even that cheap unless compared to AmigaNOne hardware.
It's quite easy to add AMiNIMiga which IS AmigaOS. It is seemingly easier to get hold of than a RPi4 and is cheap enough compared to almost any other off the shelf system. It is powerful enough to play PSX and most N64 games so it gets my vote especially over an AmigaOne nearly vapourware A1222 Plus!
Unless for course you'd prefer to play Spencer than Colin McRae and the WipEout 2097 with the good soundtrack!