Most people don't buy their own router, the ISPs bulk buy thousands of routers at a time. The ISPs make up most of the market.
Many of these routers are managed by the ISP using protocols such as TR-069, several ISPs have already been found to not only manage the devices but also monitor certain data including what devices are present.
This is pure anecdata, but almost everyone I know, include the people who aren't particularly computer-savvy, owns their own router and cable modem so that they don't have to pay a rental fee to their ISP.
A reader who's actually interested in getting the source, might try Googling for "2070.43", or even "2070.43 million wifi". I must admit, I wasn't serious enough about my comment to spend $3,250 on the whole report, and had to go off of the public preview. Since you seem to be more serious, maybe you could pay the $4,400 for a multi-user licensed copy of the report and share the PDF with me? I'd love to read more of the analysis.
So, I mean, I dunno, 2 billion dollars seems serious to me, but maybe we just have different barometers for what counts as "serious amounts of money". Especially considering these devices that are like $300.
Finally, might I remind you of the guidelines? in particular:
> When disagreeing, please reply to the argument instead of calling names. "That is idiotic; 1 + 1 is 2, not 3" can be shortened to "1 + 1 is 2, not 3."
