It isn't the latest technology, or fastest bike, but the C10 has a reputation for dependability, long-distance touring, and being pretty easy to maintain.
Kawasaki began building the C14 Concours in 2008. The C14 has a bigger engine which is quite a bit more powerful and has more up to date styling.
For someone like me who was used to 1970's motorcycles the old C10 is just fine for now. I think it's a really good bike for distance riding with a big gas tank, side bags, fairing and windshield. Given the price of a used one you can afford to buy a couple of other bikes for what a new C14 (or a cheap used car would cost)...plus it's waaaay more fun than any car.