ya, I think I'd die of boredom or horror if everyone was the same.
Language geek, huh? Awesome! (is that why your username is in what I think is Japanese?)
I'd love to be able to learn languages. I need to be in the environment to learn a language and even than it only goes as far a spoken. I hate writing, freaking spelling and grammar always confuses me and I never get it perfect.
I've always wanted to see the world, to see all kinds of different thing! and of course try them! Anything new is interesting to me and anything I don't know makes me curious so going to different places is a must. Plus I'd get to see all the culture and history... I'll see the world one day, I will. Really that's part of the reason I'm doing engineering science and putting up with all the evil evil things. This way I can do less school and make more money, eventually I'll have enough to do everything and have everything I really want.
In the mean time I'll settle for planning, dreaming and taking electives that interests me (this year I'm doing introductory linguistics which thankfully doesn't require detailed knowledge of any specific language).
I'm sure if you wanted enough you'll get to work in linguistics or archeology eventually. With the way the world works for us if we wanted something enough and tried hard enough we can pretty much get a job in any field. Anyways, which 15 languages are you aiming for? and dare I add "why?" ^_^