Knowing that there are upgrade options makes it easier for me to pay up for an expensive machine. But years later I never actually buy an upgrade because it feels like a waste to put money into a machine that is nearing the end of its useful life anyway.

I don't even want to know how much money I have wasted on buying "future proof" hardware. So if anything I have to thank Apple for making this perfectly clear to me and saving me from sinking $2200 into a laptop ;-)