Speakers as the principle component/other components are servants

What do you mean, "one day"?

"Had you told us back in 1965, folks would be walking around with telephones, sending pics/videos,,we'd all laugh you at your face as scifi fantasy."

I was reading Philip K. Dick in 1965. Nothing in the subsequent 56 years has surprised me.

In any/every scientific fields, the new  ideas are always embraced , so long as they are proven to be of superior value vs the old.
Not saying new is always the better. 
The new ought to be compared and tested against the old. 
Thing is  the really true *old tech*  = the original speakers, actually had no xovers, Xovers were invented by a   a  industry  whose objective was to make mass produced, commercialized, comsumerized, **Loud-speakers*
It was all about the money factor.
There was no way the labs could make mass produced Field Coils, or all alnico magnet speakers.
Speakers were developed around the 
 Labor/material = cost factor = The Profit factor.  
Speakers with basic magnets /paper cones, a  few cheap xover parts, some composite board veneer. Assembly line production  . Add in a  burgeoning   baby boomer gen now comming into  their own, with credit cards. The muisc industry was taking off, enticing the fans to want nice home stereos.
There was money to be made. Just advertise and they'll buy, if not put the speakers on sale, **wow I just got a  great deal*.

Jensen has some FC's and  Magnovox/Zeinth has console stereos with some nice alnico magnets, 

But with R*R hitting the charts,  the fans were not so much interested in fidelity, only *nice sounding speakers*, 
We had no idea what fidelity really was.
The fidelity of the FC's of the 1920's was longgg gone, although as I say,  Jensen attempted to stay faithful to that original true fidelity design. 
But it was not to last.
Low cost drivers, cheap xover parts,, all made the higher sens speakers less than a novelty. 
Remember the speakers from the late 1970's...,,, most were just boom box LOUD speakers. 
The acoustic Research and the Philps 3 way's called 475's (I  bought the 375's 2 ways, as i did not want the harsh midrange, *bark*)  These 2 were probably the best of the whole pack of LOUD-speakers.
The dome tweeter in the Philips, was one heck of  a   live sounding tweeter. My tech geek swears by that tweeter to this day. 
But I moved on to the Seas, Millennium which beats out the Philips by alot.
Point is, speaker technology whether for good or bad, is always moving reforming, remolding to what the public demands and/or can afford.
As long as the new fails to be recognized, this holds up funds flowing into this research to take the new technology even further. 

Not really sure if these new wide band can go futher.
Seems to me they have reach the ultimate reaches of this craftmanship. 

These masters of speaker design have done their work

Its only left to us to  inquire and test their results vs our xover  speakers.
Like old friends, they have served us well,.  maybe its time to say goodbye. 
I did., its really not so hard to do, Once you actually heard a  higher sensitivty speaker
Not so difficult at all. 
What a  relief when i dumped the brand new Millennium  tweets ina  Ebay sale 2 hour ad SOLD, $300 FREE SHIP, Paid $700. 
What a  relief those things are gone, 
the worlds best sounding dome tweeter, history.... at a  miserable 87 db. 
Been there Done that. 
20 yrs of your horrible wet blanket  voice. 

Adious amigo. 

I was reading Philip K. Dick in 1965. Nothing in the subsequent 56 years has surprised me.

~~~~~~~~~~~~~~~~~~~~
Well then, we should not at all be surprised at how  consumerism/commercialism has also  penetrated and mesmerized the general  audiophile community going on now some 50 years, that xover designs with their miserably low sensitivity  are quite acceptable as **high fidelity*, We've been scammed, frauded out our   hard earned  audio budget's not being aware we;'ve been drinking their snakeoil.

Nothing should surprise us about so called *modern man* and his un-reflective decision making processes. 

While I don't dispute that speakers-- and the right choice to match one's particular taste and complement of components and the room acoustics-- is of primary importance, The choice of amplifier has a HUGE impact on the sound.  I have been surprise by how much certain amplifiers seem to elevate the quality of almost every speaker that is attached to that amp.  No doubt it has to do with my particular taste, but, it is amazing to me that certain amplifiers will almost always sound good to me with a wide variety of speakers.  For me, it is low-powered pushpull 6L6 amps that do the trick (particularly Western Electric 124-type amps).  

Likewise, there are certain speakers that seem to be "magically" transformed when coupled to the "right" amp.  I have heard speakers that I did not particularly like, become  dramatically better sounding when a particular amp replaced another amp of good reputation; synergy is obviously a big factor.  I would relegate amp choice to a minor role--to me, the right amp is WAY up there in importance.