My point is simply that swapping batteries is not a simple, do-it-yourself process. The batteries are heavy, bulky (at least for now), and inconveniently shape

My point is simply that swapping batteries is not a simple, do-it-yourself process. The batteries are heavy, bulky (at least for now), and inconveniently shaped and mounted, necessitating additional labor, tools, and time to swap. And a battery of unknown provenance may harbor damage that is invisible to the human eye--there needs to be a health checker at the point of swapping, because if you don't get that checkup until after it's mounted in your car, you risk having to waste your time doing a second swap. And that equipment is also going to drive up the cost. I suspect that convenience and cost will tip the scales away from swapping and toward recharging, especially if the recharge cycle can be sped up and the infrastructure build-out continues.