All the Z80 CPUs that have been used on CPC and Plus machines are NMOS. [https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/z80-cpu-nmos-or-cmos/ Source]
Zilog ended the production of the Z80 in April 2024. This chip is still available in ample quantities through NOS chip suppliersand can be purchased for 1. And 20€. [https://thecheshirec.at/2024/11/09/on-va-tester-des-z80-tout-neufs/ Source] Also, Zilog continues to produce the [[eZ80]] which is a modernized Z80 CPU.
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