If you never played this before, go for it. It's great. If you already played the 64 version to death like me, it's not worth buying at all. Yeah the graphics are pretty, but it feels just slightly different from it. I'd stick to the 64 version for 10 bucks on the Virtual Console.
For the longest time, I was convinced that OoT was the greatest game ever made. From the very beginning of meeting your fairy companion to the final showdown with your archenemy, the game was something that kept my interest from start to finish, and made me really connect with the main character. Most of us wish that we could be a hero destined to save an entire civilization, and this game gives you the opportunity to act and satisfy that desire.
While I do feel that the impact the game had in 1998 was the strongest, the 3DS version does not disappoint in any way. This was the first game that I ever played on the 3DS, and it is easily my favorite. OoT was meant to be played, and now you have the ability to do so with so many new features that not only make the game more convenient to play, but just as accessible as it was on the Nintendo 64.