I am still resisting the consumer urge to buy a jetBoil or MSR, even resisting taking a soda can stove. its not just the stove, because you need a container, and carrying the bulk.
for 3 day trips, I still manage with pre-prepared foods, eating the perishables first, and leaving the ready-to-eat for the last day.
I understand the psychological benefits of having a hot meal, but I get by on packaged foods. dried fruits, smoked salmon, bagel, cheese bread rolls, single servings of Smuckers jelly, pretzels, tuna in a foil pouch, spam singles, (pre)hard boiled eggs, pre-cooked rice and ground beef vacuum sealed and frozen-> they thaw by day-2, of course jerky and mixed nuts variety, even caramel popcorn. My buddy takes a few slices of pizza wrapped in foil.
I end up with 2 oz of food packaging trash, instead of a kitchen, stove, fuel, cookpot.
I don't need hot coffee or soup. that's what works for me.