Is there a legal reason? I know from Nintendo of America's website that they mention specifically their stand against roms in all cases, but there is no mention (that I recall) of reproductions nor pirate carts. While I understand that obtaining roms is much easier than reproductions or pirate carts, the sale of reproductions and pirate carts actually produces money for the manufacturer. (Yeah, I suppose advertising brings in $ for the rom sites, too). I don't see why rom distribution is illegal or at least frowned upon but pirates and reproductions are kosher. What are your thoughts? Why the double standard?
Also, what the hell is the difference between pirate carts and reproductions, anyway? Is it the quality, amount of games, reliability of advertised game(s) actually being in the cart, geographic origin, or that it is for the Famicom rather than the NES?