[phkahler]

Making use of the fonts on the users machine requires even less bandwidth while allowing the user to view things in whatever font they find easiest on their eyes. Including fonts on web sites has always been about designers getting their way. This is just more of the same.

[untog]

Couldn't you say the same about images?

Besides, the OP clearly described the benefits in being able to adjust the font according to screen density. Using system fonts doesn't magically solve that issue.

[ori_b]

> Couldn't you say the same about images?

I would, if the user's machine came with a preinstalled set of images that were a close match to the need. I don't think the web browser exposes the user's standard icon sets on the web, but it absolutely should.

> Besides, the OP clearly described the benefits in being able to adjust the font according to screen density. Using system fonts doesn't magically solve that issue.

Using any font made in the last 20 years solves that issue. Vector fonts scale to any screen density just fine.

On top of that, if you don't shove a webfont down the user's throat, a user can even pick their favorite font size and density to match their screen and viewing preferences.

[Spivak]

Sure it does, let the client render the font based on what is best for the given user on the given device.

You're more or less describing DPI scaling, no?