Bandwidth; we deploy frequently, and pushing images around is a fairly hefty part of that deploy, and the less the better. OS images don't update too often, thankfully, and Docker will only upload layers if needed, but it's still much easier to push 5MB than 80-200MB, so Alpine does have a distinct advantage there. 1GB is pushing it, a bit. (We also put much of our tooling on the host VM; generally, this can suffice IME.)

While my office has a great connection, my ISP at home is less so, particularly in the up direction. On mobile, pushing 80-200MB up is essentially not going to happen, both because it eats into my data caps quickly, and because mobile latency is such that that's really slow.