It doesn't matter if it's against the ruled until Amazon does something about it. I remember when you could buy emulation machines full of pirated software on Amazon, you probably still can
you can legit buy a external hard drive with modded software that will launch a emulator front end for you with a hundreds of roms pre installed for you
I bought the Taito Egret II Mini just to play puchi carat
"GREAT SHOT! RETURN TO BASE IMMEDIATELY! GREAT SHOT!RETURN TO BASE IMMEDIATELY!" *GUNSHOTS*