I'm glad that there's a lot of people going to this year's concert.
Those maps that Hatix posted are exactly what I was talking about. Those places are easy to find, and they have plenty of tickets. I remember when I was deciding whether buying expensive tickets for B-something or the upstairs 7000 yen's tickets. I finally decided for the 7000 yen tickets, hehehe (because we already went to the concert, one day before I bought the tickets). Yeah, you can buy the tickets on the same day, it's easy to find resellers
Good luck, my friends! I wish I could be there too, sigh!