As I watched on other photographers, to make photography as a game in which you can loose is better, or at least simulates you.
With old lenses, you must make the zoom and the focus. You manually change the aperture. And the optics looks better on old lenses.
This a photo done in old style
http://fav.me/d4xyw4s
Maybe you do not like it, but there is more fun in using old lenses. With no certain results. So the game is more game.