I was under the impression that you also get revenue just for displaying the ads? Might get more from a click-throug, though.-f0dder
All depends on the ad and the contract you have with the advertiser, agency, Google.
Most consumers have unlimited internet plans, these days - and the size of an ad is hopefully going to be just a fraction of the content you want to view.-f0dder
Not sure about the % of users, but most plans I see here are capped, not unlimited - and most ISPs throttle unlimited plans anyway, and most users have limited speeds (especially if the connection is being shared with a whole family), so I don't see that much unlimited really going on.
And it does make a difference. More than one site I visit, loads all the ads before the content (and often stutter/stall if the ads are blocked) and pages can take quite a few seconds to load. It can be a real irritation, if you then try to click on a link before the page has fully loaded just as it redraws and you end up on clickin on one of the ads. Of course, I tend to avoid those sites as much as possible or use a browser with heavy duty & effective ad blocking on those sites; I usually don't bother much since they don't distract me much on most sites & Google ads don't bother me at all.