Why HiFi manufacturers don't make active crossovers anymore?

I’m seriously considering this, instead of build the passive cross over for my speaker project...

http://www.accuphase.com/cat/px-600e.pdf
http://www.accuphase.com/historys/pdf/cx-260e.pdf
http://www.accuphase.com/cat/f-25en.pdf

This multi channel amp and active crossover, would like to know more about if this example can be a more easy solution to divide the frequencies for the speaker’s drivers, instead of build the passive crossover for the woofer, radial horn, and super horn tweeter, as is suggested on the Fostex speaker’s plan.

https://www.fostexinternational.com/docs/speaker_components/pdf/recom_enclose/w300aII_encl.pdf 


More, easy, straight forward configuration, but more expensive for sure... well this amp, preamp and active crossover from Accuphase I found some to sell occasionally on the web, sometimes the preamp and the active crossover appears at a more reasonable price in Japan I think..

Anyway, what do you think about this solution for a 3 way loudspeakers?

I noticed that on the PX-600 brochure, Accuphase shows a picture example with this devices used with 3 way speakers system, with the exactly same design of the ones that I will start to build, take a look... maybe this says something? probably a good match?

All components are from 2001, then, they are soooo vintage to worries about repair, recap, and etc, if considering very well cared units, the F25 is from late 90’s but was re-released in 2005.

Let me know your thoughts about, very interesting stuff....

yes, 3 way with active 3 way crossover and 3  separate amp is step up, but is not for commercial market , not too many customers  gonna buy, and don't make sense put it production, Meridian make this with build in 3 way active crossover and  build in  3 class D amps.  is very costly, and some folks don't like class D, My company Bache get experience to make what  looking for, so only small company can realize you protect

That's why I'm thinking about the option that I posted above, maybe you can cut costs with some "more vintage" components, and a multi channel high end amp...

I have a speaker system, the Legacy Audio Whisper DSW Clarity Edition, that can be set up active or passive. I can make either setup outperform the other. I have done this consistently over the years. My perspective is that once you begin changing elements of an audio system it is simplistic to declare one method inherently superior. YMMV 

You can read about this special speaker system that Legacy Audio did at my request, and the article about it at Dagogo.com  

in my  project Bache-audio -002 first edition  we use build in 2 active 
Class D  amp with electonic crossover , sub  20-150hz and upper bass
150-700hz ,  For 700-25000 hz we use only 2 capacitors, one for widerange to protect from low freq and one for  super tweeter same idea, so you can use only one external preferable Tube low power SAT .
But a lot  different combination can be used,  for my point of view 
is not necessary to use 3 same amps,  Class D especially NCORE-Is excellent choice to power bass,tube is better to power mid and high.
If you have more question ,  email  Greg