I’m sure they’ll sell it to you for less if you pay cash instead of credit.
While I live in a stand-alone house (the one at the moment is 1100 square feet, including the outdoor patio), even if I had the money (and could justify it in my mind as being useful used for those), I could not justify the space they take up (as, of course I would need one for each channel, at the least) and therefore would need to have a much larger home.
Since my wife & I are fine here (and here is paid for) and the only reason that I can think of that I would want a bigger home for: is to have a 4 car garage with 10 ft. ceilings (so that we are not cramped for space & can actually use the garage for 2 cars, a working on the cars/lawn gear & gardening equipment area, as well as the space to store those things).
So I guess I'll have to be gracious and let be more of these available for others to be the ones that enjoy having these these monstrosities.