To perhaps state the obvious, I use mine mainly for coffee. And the occasional tea cup.
I don't understand this sentence, I would much rather waste some ground coffee beans and water than plastic.
Just because they both heat water doesn’t make them similar.
I've since switched to a Zojirushi water boiler which I adore, especially after learning my keurig wasn't getting hot enough to really brew the tea well.
French press, pour over, chemx are all niche.