From the link,

"In the quarter, the company saw 309% growth in PC webcams, 342% growth in tablet accessories, 218% growth in video-collaboration tools, 78% growth in gaming-related hardware, 40% growth in keyboard sales, and 38% growth in pointing devices, like mice. Audio product sales spiked 87%, with the only weak spot a 22% drop in sales of mobile speakers."

I have to think that by comparison, the other areas are a lot less demanding of company resources and support. Must be nice, to be able to sell products and never need to answer eight million questions from people who should have read the damn manual and asking about products from other companies.