Probably I'm even in the market for 2.That is an excellent question but do you mean wired or BT wireless?
One for sure wired for critical listening.
One for travelling/airport/plane/hotel/noise purpose with some noise cancellation. Could be wired or BT.
Listening to music is always the goal. If the ANC one has a mic it could be multi-purposed in the office setting.
But don't want to make it a question about my situation honestly. Just general topic to collect various preferences, viewpoints, reasonings. Might just open my eyes to something I'm not even looking at so far.