Yea I don't think TSMC will be able to charge as much as they have been going forward assuming a new craze doesn't randomly start up. And if Nvidia stays at their current 4nm node, then we just might see PC hardware going back to good prices.
PC Specs: CPU: 7800X3D || GPU: Strix 4090 || RAM: 32GB DDR5 6000 || Main SSD: WD 2TB SN850