Yeah, I would totally take you up on that offer. But there are some complications/minor (and major) factors which are ruining my chances of going.

Money, time, and what am I going to say to my parents? Hey, some stranger on the Internet is inviting me to go to an Ayumi Hamasaki concert with him.

(No offense.

)
Hope you find someone! And whoever it is, they'll sure be lucky to go!