Many elaborate scams are not relevant to most people, but only to people with money. Most phishing attacks are not relevant to most people, only to people in some important enough positions, or with access to interesting enough networks.
But the damage of such attacks is still large enough to care.
I'm sure there are quite a lot of non-tech-startup small businesses in the same boat. And sure, still less than 50% of people own such business, but that something doesn't directly affect a majority doesn't mean it's not important.
I guess, to clarify, what I'm trying to get at is, should someone who hears "this computer/router/whatever supports WPA{N+1}, whereas that one just supports WPA{N}" factor that into their purchasing decision or not. And the answer I see seems to be, "if this is just for your household use, then no, unless you have reason to believe someone in your proximity would try to hack you".