I know that feeling. Right now I am in Taiwan, and I missed both the 1st and 2nd Asia Tour solo concerts because of classes. I was one train ride away from seeing them, and living with that fact during that time, stuck in the classroom, it really sucked big time. I couldn't even go online and watch out for some news, it was so depressing.
Good thing I was able to make up for it two years later. Yep. I waited two years before I finally was able to see them (in Bangkok for the 2nd Asia Tour). I do hope you have your chance someday too. I'm telling you, it will be a damn wonderful experience.
Yup, thanks! I downloaded the Shanghai ITNW concert and 2011 Japan Arena Tour videos, and I could tell that their concert are definitely amazing. Patience is a virtue...