Well, like I said, I'm a collector so the real copy is worth more to me. But, also anyone who takes the time and risks to open provide me with out of production games also deserves my patronage. I'm into retro gaming and places like Game Stop only sell newer games. I have around 120 NES games, many were bought from a local video rental store, but recently I have been getting them real cheap at Goodwill. Goodwill is a place where people donate things and then Goodwill sells them, incase you don't have any. I know they are great for retro gaming. I got around 40 NES games there, NES is my obsession. But I got around 20 Genesis games there too, it's definatly worth checking out.
Goodwill Store Locator