Out of curiosity, if you wanted to make coffee in a big french press how would you heat the water?
I wouldn't, to limit my caffeine intake I pretty much limit things like caffeinated beverages to work only where I get free coffee anyways that's actually pretty good. Never mind most Americans use drip makers at home.
I'm not at all denying that these things can be useful, on average Americans just have less uses for them and you can literally see this fact play out in their low ownership rates over here. I know instant ramen (which I haven't eaten in meaningful amounts since college) or fresh ravioli (something I eat incredibly rarely) aren't exactly bringing me around in getting one of these for myself. If you feel you're getting good use out of yours though, good for you.