[tyingq]

I agree that alone, agonizing over 7kb vs 30kb is probably silly. It's more the overall effort of doing that sort of thing across the site for more than one library, image, etc.

There are still many people that will access your site via mobile in spotty coverage areas with low speed. Or after they've exhausted their included high speed monthly allotment, and are now throttled.

Also, egress bandwidth at popular clouds is ridiculously expensive. Enough so that the effort of trimming down pays for itself pretty quickly.