Im joking somewhat. I'm not actually interested in it. There's a reason why I'm bad at it. English is much more useful to me, and Japanese is much more interesting to me. Besides I speak it fine enough, it's mostly reading and writing I suck at, because I simply don't use it or need it.
I've been learning japanese for a long time. It took a lot longer than I expected. When I was starting japanese I wanted to learn italian and korean. Now, I think I would like to learn korean (just enough to be able to sing more correctly), and german (just cause I think is interesting and I have some friends that live in germany).
Foreign languages are both my passion and my job. Apart from my mother tongue, I know English, French, Catalan, Spanish, a smattering of Italian and very incorrect German, picked up strictly from conversation. The latter would be what I'd get down to more seriously after "finishing" Japanese. I really ought to sit down with a German grammar book and iron out those problem areas!
Anyone who hears I'm studying Japanese goes "oh, but that's so difficult, isn't it?" Then I have to explain that no, actually, grammarwise it's a dream of a language – just compare it with the neo-Latin family! Number, gender, a whole heap of verbal tenses, declinations left and right... Compared to all that, Japanese is just so さっぱり.
One thing about setting out to acquire a new language though, particularly past childhood, is how much material in that language you're going to consume. Xhosa might sound fascinating to learn, but if I'm not going to have much contact with the language past the learning phase, it won't "keep" properly. (Now that I think about it, I studied Latin in school, but I can barely read inscriptions on monuments in it.)