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Knights among toner cartridges
(infosec.pub)
(Business people) speaking a language familiar and dear to them. Its portentous nouns and verbs invest ordinary events with high adventure; executives walk among toner cartridges, caparisoned like knights. We should tolerate them - every person of spirit wants to ride a white horse. -William Strunk Jr. (The Elements of Style)
Depends heavily on what exactly you're doing.
The chair, absolutely. But I'll take the second monitor over a docking station any day (what are you even using it for? Connecting a laptop?).
2 monitors, full size keyboard with the numpad, comfortable mouse, and no interruptions.