The 61s seem to sacrifice some smoothness for output.
Yeah I'm sure every buyer is interested in those graphs.. why do "much worse" boxed versions even sell then?
I don't think there is anything strange in physically larger (uglier?) and more expensive speakers being (anecdotically) more rare. And 8361A is probably around the price point where you could just go full retard with much larger speakers (or smaller and subs if you are very tight on budget). It's still only 10" equivalent, barely out of midbass territory.