I spend about ZAR 1200 (or 60 EUR per month) on coffee at home but who knows with all my cappuccinos. It's not really cheaper here in South Africa. But thanks, you made me look at my own coffee consumption now and it's always good to know!

Indeed macOS is a bit memory hungry but... unified memory, the sheer speed those chips can move data around is ridiculous. And macOS is a proper workstation Unix.

You're right - it's not ideal for headless. But there are ways. Still less painful than running Windows as as server.