The hilarious thing is that you didn't buy a new computer for 9 years, and yet you're heated at Apple.
Reframe things. Your computer was a solid workhouse for 9 years before you felt the need to replace it. In the age of disposable tech, to get almost a decade out of a single device is kinda amazing, if not almost impossible.
(and to those who would say tech should last at least that long - sure, but also, if you want to stay cutting edge and need every last ounce of performance possible, you can't even reasonably assume that a computer is going to remain comparable for more than 5 years, at best. Any real techie knows that the best tech available is the thing that just came out the day after you bought your new machine)
My guess is that Apple did a cost/benefit analysis of how many customers actually used the extension cable with the brick, and determined that it was impractical to include it with every laptop sold. Sure, it might only cost a couple cents per machine, but that cost adds up when you scale to the production output Apple has.
If anything, get mad that Apple charges a drastically inflated price on their accessories to maintain their lofty profit margins. Actually, if anything, get mad at the stock holders for expecting Apple to maintain that profit margin on all their products to line their own pockets. You're mad at the wrong people, friend.
