indeed.
i remember making a suggestion of having the actual carts the games came on as trophies, as well as an NES trophy (which would be ultra rare/ near impossible to get) which would unlock a bonus feature that let you play them on Wii.
the cart trophies themselves could also be pretty hard to come by (depending on your skill atleast). remember how in SSBM each character had 3 trophies? the third of which being the SMASH trophy won by completing the all-star mode? how about getting a trophy of that characters most famous game? since there would be millions that would opt for this way of getting the game rather than paying for a straight download, there could be a certain criteria to meet before the game just gives it to you (via wiiconnect24?).
i've thought about having SNES or even N64 carts as trophies but i think having the NES games won would be better. not only would it please the crowd of older gamers who remember those games but it would teach the younger crowd history about their favorite charactesr; more so than a blurb a paragraph long would. the original game would be the way to go.
for characters such as luigi, peach, yoshi, bowser and even wario, who all appear in the same series, they could make it so each unlocks a different game. for instance beating and all-star type mode with mario would no doubt unlock the Super Mario Bros. trophy, so instead of having five or so copies of that trohphy, luigi could unlock the original Mario Bros. Peach could unlock Super Mario Bros. 2 (first game she was playable in), Bowser could unlock Super Mario Bros. 3 and yoshi could unlock Yoshi's Cookie.
wait, it just hit me that a character like Captain Falcon got his start on SNES (unless there was on f-zero on famicom). I guess instead of an NES trophy, a Wii trophy (which would be in the game anyway, if trophies make a come back to begin with that is) could be the ultra rare trophy that unlocks the games as downloads. that way you could have all the cart trophies for every character but wouldnt unlock the actual download to VC without the Wii trophy. that trophy would then become a link to VC and allow you to play the library you collected on smash as prizes, as well as every other game you d/led.
or is that too complicated?