These rules were not made up by art teachers. They were deduced from the study of successful art. You don't necessarily have to follow these rules, but I believe you should know what they are and what they represent. They're an imperfect attempt to understand why human beings would rather gaze at item #1 than at item #2. I want people to look at my pictures, so I pay attention to the rules.
That's not to say I follow them slavishly. It's more a matter of playing with composition and cropping until I see something I really like, then asking whether or not it follows one or more of the classic rules. No surprise -- it usually does.
As a former owner of a Leica IIIc, I have to say:1. The X-2 with OVF is gorgeous. It would look stunning hanging from my wrinkly old neck on an elegant leather strap, just like my IIIc did. 2. F/2.8 is faster than the f/3.5 with which I took hundreds of good photos, including many in dim light, at ISO of only 400.3. I assume the X-2 lens extends electrically, whereas my old Elmar had to be withdrawn and locked in place by hand.4. My IIIc had to be focused manually, but the X-2 has automatic focusing. 5. The accessory OVF looks much bigger and brighter than the squinty peep-hole in my IIIc.These improvements, in a body about the same size, shape and beauty as my old IIIc, would make this camera much better than the IIIc. I call that tasteful progress, and I say, "Bravo, Leica!" I won't buy one, though, as I have not yet worn out my 6-year-old, 8-megapixel Canon 30D.