Well, I don't ration myself, but I hardly ever listen to the same thing more than once in any short time (days?). When I listen to something I really like, it also makes me think of other things that would be good to listen to, and so I'm wanting to hear something else after enjoying a particular album. As the music changes, so does my mood, so it may be a while before I get back to something I recently listened to, but I put on whatever I feel like at the time without consideration of whether or not I played it recently.
Do you ration your favorite music?
When I find some new music that is outstandingly good and that is also exceptionally well recorded, I find myself rationioning my listening to it. I try to avoid over playing it to make sure I dont spoil it for myself. I think this might be one of the drivers for the size of my collection. How about you?