Even though you are probably trying to buy one in good faith, they just increase the scumminess of the home cart scene. Re: the multiple seemingly 'original' ms1 carts that spewed out of Japan a couple of years ago.
I have a conversion and it works great it's clearly a conv. cause it says so in the manual and there is a different sticker on it.I only bought it cause i didn't have mvs.I do now.ANd i bought mine in great condition for $145