Or just buy a few Atmega 328s and put them away for safe keeping ...R
A few hundred ...
Better hurry. The educational and documentation infrastructure is disappearing. :-((For example, the SAMD datasheets (Arduino Zero) don't even contain an "instruction set summary")
IIRC you would prefer people to have unused PICs in their cupboard ?...R
Intel built a huge place where I used to live as well (Leixlip, Ireland)....R