You are essentially correct. Even today, all chips fresh off the fab (of the same family) cost essentially the same to make for the same die area. However, do t

You are essentially correct. Even today, all chips fresh off the fab (of the same family) cost essentially the same to make for the same die area. However, do to natural variance in the process they don't all perform the same. So chip makers 'bin' the chips for different speeds and very different prices, essentially based on scarcity. But then with each lot and stepping the FAB starts to get better and better at making the top bin chips, and variance reduces. That's where the marketers take over, down-binning perfectly good fast chips to serve low-end customer segments, under-clocking, fusing off perfectly functional areas or features of the the chips to protect their segmentation strategy etc. Intel, AMD, Nvidia do this all the time. That's how they get dozens of SKUs out of only a couple of chip designs in production at one time. That's why, at many points in history, you'll find bargain priced intel chips, that if you unlock them, turn out to work exactly as well as 'extreme' or luxury-priced chips, that had just been artificially down-binned and handicapped to meet demand for lower priced PCs, and to be able to sell a chip at every price point for maximum price discrimination. TL/DR - Yes, all chip makers basically price their products like airplane seats.