Mike60, I know exactly what you mean. I do the same thing. A little voice says "don't play that now, you just listened to it a couple days ago, it's too good to risk getting bored with it, wait awhile." Of course, sometimes that little voice gets overruled by another little but louder voice that says "on the other hand, you could die in your sleep tonight so why deprive yourself now?"
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?