>>58223699>source does not exist
That's because WotC doesn't release sales data. If you'd been here 10 years ago you would have had this argument 50 times a day.
It settled down when people started posting distributor data and showing that 4e sales were almost approaching 3e sales, as long as you didn't count 3.5 with them. That was over a year into 4e though, so it was on the downward slide but it still showed people were at least trying it.
You can't imagine the amount of internet yelling that has been down over this.