If you buy a shitty album, you can't get your money back. And you can't get the band to "make it better" for you.
Is software a thing? A performance? A recording? It has elements of each. And despite people saying "we've solved this issue", we haven't. We keep slapping on different metaphors and complaining when that metaphor inevitably fails.
That and no one really wants to pay the actual price for complete, error-free software. What they want is to get complete, error-free software for the price they've paid. Which is different.