I've been a fan of anime/manga since sometime in 2000 I would say, though I've been a fan of Japan in general for much longer.
A lot of the anime I've seen in the past has been through cartoon network, I'll admit it. Most of them, the reason I "dropped" them is because they were taken off the air, not because I chose to. Also, most are only guesses at how many episodes I've seen, as I never kept track.
Similar to the anime, a lot of the manga I've read has been through Shonen Jump, Shojo Beat and Animerica Extra, and the reason they are "dropped" is because the magazine stopped running them, or stopped publication altogether. I also couldn't possibly keep track of chapter numbers for everything, so I guessed.
Other than that, there's a fairly wide range of stuff I like, it's far from being one genre.