In fact, this reminds me French painter Braque being shown a fake Braque, he said: "this is not my work, it is beautiful". What I mean is that "beautiful" in the common sense, the one that applies to clothes, girls, gadgets (including Apple's), commercial movies, 3D games, etc., this superficial aesthetic quality not important.
In this sense, Vim, with it's fixed width font, black background, pure-text help, etc. is certainly not beautiful, and therefore a bit of a stranger on a Mac where, apparently, so much money and neuronal activity has been spent to beautify its OS, its casing, its font aliasing, every single icon and even its boxing.
Gosh, look at the Vim logo and tell me by which miracle it can have so much sex-appeal in a Mac environment? (Or has it? dasil003 says no in an uncle comment, maybe he is right.)