Articles on MacRumors by Mitchel Broussard
www.macrumors.com
28/8 (today), 24/8, 19/8, 13/8, 11/8, 10/8 (x3!)
Those are the occasions with more than one "Deals" post on the same day (PDT) this month. I'm not sure it's fair to say "rare", more "weekly"...
One thing I'll throw out there is that perhaps OP, like me, is not in the USA - I say this because of the complaint about them being USA-specific. The
timing of them in relation to other articles (ie, they end up top of a bunch of things that were posted while I was asleep) could definitely skew the perception that it is the majority of content posted. I know I was surprised, looking back through and realising how they don't form anywhere near as much of the content as I thought.