About the emulation: i don't think Saturn being much harder to emulate than Snes. After all, Snes had a nice bunch of processors.
And do you know what the amateurs don't have access to? The original game data. Sega can modify every game to run on Wii even natively if they want to. Or they can make an emulator for each game. You see, the games on Virtual Console aren't just "put in there", they all are modified somehow.
Now, the emulation we're talking about isn't emulation from original game discs, it's emulation from Wii specific files. Of course they are trying to make emulator which will work with as many games as possible, but an emulator which works with all games is propably impossible, so they need to modify the games or make more emulators than just one.
Ei Kiinasti.
Eikä Japanisti.
Vaan pannaan jalalla koreasti.
Nintendo games sell only on Nintendo system.