Speaker manufacturers or box manufacturers with off the shelf drivers?

Most of the speakers I have owned and liked, with one exception, make their own, especially Magnepan.  The only speakers I have owned with off the shelf drivers were Dahlquist DQ-10,  

I am sure if I were to start a "speaker company" tomorrow, it would be easiest to build a box and use some ready made dynamic drivers. 

 What's inside the box is secondary. ?  Not all speakers are boxes.

Magnepan, Quad, Martin Logan and others.  But if a person wants a box with Scanspeak or other "of the shelf" drivers...that is good for them, it does help for making many more choices.  I guess we could talk about the crossover components, but that would also be secondary. 

Well, at one time a Pontiac, Olds and other "long gone" GM cars had their own engines....then they became the same Chevy engine and chassis with different grills and bumpers..and Wow, guess what happened, imported car sales became very real, so perhaps some American consumers can think for themselves.  At one time many of the world's leaders were driven around in Packards and other American cars, but as the film "Tucker" displayed, without anti-trust laws being enforced, many will make different choices.  Much of what I feel is/was the true spirit of this countries values/thoughts are in the poetry or book of "The Road Less Traveled"  "The Road Not Taken"

BY ROBERT FROST
Two roads diverged in a yellow wood,
And sorry I could not travel both
And be one traveler, long I stood
And looked down one as far as I could
To where it bent in the undergrowth;

Then took the other, as just as fair,
And having perhaps the better claim,
Because it was grassy and wanted wear;
Though as for that the passing there
Had worn them really about the same,

And both that morning equally lay
In leaves no step had trodden black.
Oh, I kept the first for another day!
Yet knowing how way leads on to way,
I doubted if I should ever come back.

I shall be telling this with a sigh
Somewhere ages and ages hence:
Two roads diverged in a wood, and I—
I took the one less traveled by,
And that has made all the difference.

Perhaps this all why I have enjoyed some of my times with Magnepans, they are not off the shelf drivers places in a MDF box. 

Again, simply asking a question.  With some of the replies it would seem that dynamic drivers in a box is what people think of for speakers.  Planer, Electrostats, the Heil driver and others seem, at least to my memory, to exist.