> They really ought to stop using "buy"/"purchase" metaphorically to mean something more like "one time fee for an indefinite lease that ends upon account termination."

That doesn't really apply to buying music though, does it? If Amazon banned my account, that wouldn't prevent me from listening to the MP3s I've bought from them. It would only prevent me from re-downloading them from their servers if I somehow lost all of my local copies.

But if I buy a CD from a physical store, they also don't give a me another copy for free if I lose it (even without account termination entering into it), so I'm not really any worse off with the digital download.