Yep. Also RIP Radio Shack, JDR Microdevices, Weird Stuff, NCA Peripherals, Fry's Electronics (and Fry's drugstore / groceries), and Egghead Software. Even the retail hypermart CompUSA died, leaving only their nemesis,
Best Buy.
Micro Center and Central Computer (CCS) endure. The latter stocked those phonebook-thick computer advertisement magazines and Linux on CDs.
I'm reduced to crapshooting Aliexpress and eBay with occasional purchases from Mouser and Digikey via findchips and octopart.
The electronics supply chain just doesn't exist as made in America anymore in volume. Meanwhile, the best place for hardware is usually Shenzhen. Offshoring engineering and manufacturing, declines in EE and skilled workers are the limiting factors. Perhaps there ought to be a 300% tariff placed on goods designed or made not in the US with <75% domestic labor or <75% domestic parts.