I like D&D because it is D&D. I like it even, or expecially with all its little and not so little idiosincrasies and weirdness, the elemental, quasi elemental and paraelemental planes, positive and negative energies, the great well, vancian magic, the 9 alignements, beholders and illithids, I like all these things and other even if they don't make sense, sometimes because they don't make sense it makes them all more real (I don't like this "everything has a reason, everything has a function" approach in the end it make everything sound like an element of a game rather than part of a a bigger world). I like all those thing, I was saying because those thing are D&D, you can play D&D even wthout them, it is true but they are still part of D&D, if I want to play with them I use D&D, if I want to play without them I have a lot of other choices, GURPS, HERO, exalted, FATE, JAGS and more, and more, and now this new game that they call fourth edition but that to me seems have nothing in common with D&D beside the name.