[coldtea]

>And yet it was Sony that hurt their camera market shares the most, action cams are a nieche product.

Mirrorless/DSLRs and compacts have been further niche-ified by mobile phones. Many who previously would step up from compacts to a Mirrorless/DSLR have stopped and just use their (now vastly improved) phone cameras.

And mirrorless and DSLRs are maybe more of a niche than action cameras (which tons of average Joes buy, not just extreme sports fans).