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That`s how the world moves forward, darlec. We learn from previous efforts and make better products with that knowledge in mind :-).
I doubt it that my car dealer will let me cancel my purchase of a 2019 model last year and switch it for a brand new car because the new one is better.
Will Sony accept a cancellation of a PS3 purchase and give you a PS4 because the PS4 is better and newer?