Firstly, whether or not that is true in the case of the Beatles is totally down to who is listening. I've personally never become board of listening to any of their albums, unless of course I listened like 50 times in a row or whatever, but who does that? That'd make me board of any damn album.
Secondly, even in cases where you do naturally find yourself getting tired of one album quicker than another, how does that make the other more "proper"? All it seems to mean to me, is that the albums accomplish different things. Like an experience I had last year: The National's "Boxer", I was able to listen to dozens of times and could happily listen again today, whereas GaGa... by Spoon, I loved, but couldn't listen any more after say 10 listens. With that said, I still think Ga Ga Ga Ga Ga is the better album. The reason its appeal has a shorter span is that it's more immediate music. I don't think there's any legitimacy to claiming that something more poppy and immediate is therefore not as proper as something built upon more depth. They're just *different* types of music, with entirely different aims and goals. They ought not even be compared.