This is for the Wii's Virtual Console and the NES game Double Dragon (the 1st one) is already out on the VC (I think).
So, if I have enough Wii points, should I get it for the VC or not?
Well I currently don't have any Wii points yet.
It depends on how much you like it. I don't really know you. Try it out and decide, maybe?
If you already own the original game then it might be worth having it for your primary game console. That way you don't have to switch out systems to enjoy it.
Double Dragon was fun, as I recall. The gameplay was mediocre, but what I remember making it enjoyable was the challenge. From what I remember, it's probably one of the most difficult original NES games out there.
As Burlyman suggested, try DDII. That one had better gameplay (multiplayer co-op).
There was only one thing I didn't like about Double Dragon III: there were no \"continues.\" In other words, if you died, you had to start all the way back at the very beginning of the whole game. I did finish it though, or a friend did, I don't remember. xD