Once, I bought a mac a month before they replaced the line. Turns out, the mac I bought was (basically*) moved down one spot and a new configuration took its place. I called Apple and complained. They offered me a $100 credit to stop complaining and free up the phone line.

From then on, I would pay closer attention to the revision schedule.

But at no point did I consider Apple a scam. And at no point did I think they even did anything immoral. I just wanted them to know how unhappy I was about the situation. Heck, I didn't even feel ripped off.

*I was testing their pricing policy to see how far they'd let me take it. I remember they had some kind of price guarantee. But they didn't technically violate their guarantee because the model I had and the new middle model were technically different (though functionally similar).