TwoSix
Everyone's literal second-favorite poster
I don't wish to relitigate any part of the edition war, but I do think the release of Essentials in 2010 was somewhat enervating to the dedicated 4e fanbase (including myself) and may have contributed to the decline. I know I bought less books after Essentials released.I think people forget that PF first achieved parity with WotC the very same time that some of the 4e Essentials were coming out. That's in 2010, just 2 years into 4e's lifespan. It's not just a late 4e phenomenon.
The worst part about trying to talk about 5e from a historical perspective is that 4e always gets dragged into the conversation.