Your setup is great for enthusiasts like you and me, but everyday folks don't want to deal with mounting hardware or audio interfaces or learning what a condenser mic is or spending more than $50.
$50 is about the price of the microphone.
It so happens that there's the $70 USB version of it too, but the interface in it is just acceptable, as opposed to being superb. (This microphone sounds as good as $400 RODE products, using it with bad interface is a disservice when $80 gets you a great one.)