Our first cat was black, but we only had her for a year (she was sick and in a family way, which is why she was rehomed). Then we had a Siamese, Tao.
Mi-ke is a tortie. I'm in the market for a friend for her at the moment. I'm seeing quite a few black cats on the web, but I'm seeing lots of things, and I suspect that shelters tend to "promote" the hard-to-adopt ones more than the little bundles of kittens that will be snapped up in moments. Well, plus they have more time to get pictures.
Anyway, I'm going to see a woman about a cat (heh) this weekend. He's black, although they say he also has faint tabby markings (we'll see). He's flagged as a "favorite" of several registered people on that site, but he's still there (with his foster). I notice that his sisters are adopted--a black and white and a tabby, both very fluffy. Actually, it's odd because his pictures are also kitten pictures, but he's not fluffy.
I understand why people go for other colors, though. It makes them more interesting to look at, having different colors and patterns. On the other hand, cats are cats are cats, and it shouldn't really matter. Anyway, black goes with everything.
Are special needs cats hard to find homes for? I keep seeing all these FIV+ cats, and I know they need a home just as much as any other cat, but Mi-ke's FIV-, so I can't really help.
My family used to take care of some free-range cats. Only one was ever taken in, and he was black. He lives with my brother.