Did you know that Leica was actually the company that first invented autofocus? Between 1960 and 1973 the company patented a number of autofocus technologies, and then showed off the technology at photokina in 1976 and 1978. However, the head honchos of the company believed that their customers knew how to focus and preferred focusing themselves, so they decided to sell the patent rights to Minolta.
On a rangefinder I totally understand, you're not looking through the lens, so it's hard to see what the camera focussed on... On a dslr, it's not perfect all the time, but most of the time it's great!
Check out this new camera technology where you can change the point of focus after you take the shot.
The website has pictures to play with.
I prefer the old way: just point your camera at what you want in focus...
You still can, just is you can change it again later (for example if you get it wrong).
Not my cup of thea, if you did it wrong, you learn how to do it better next time.
How is this fun? Just point the thing at what ever and when you get home you 'create' the final image?
How can you ever start to excel or learn something in photography?