1 pounders are certainly way handier to move and store and great if you're out for just a short trip. And I do use em frequently with a torch. But it would also be a pain to have to refill them each manually vs the 10lbs and maybe even 5 lbs that I assume they would refill at the station. And I imagine many people would be nervous to refill one of those little guys, let alone 5 fairly often.