Go Active Crossover or Upgrade existing XOs?

I've been running an active crossover system for nearly thirty years using four ARC amps. Two mono blocks for woofers and then two stereo amps for the mids and highs.  Probably the greatest advantage IMHO is that none of the amps "know" or could care what any other amp is doing. Tons of headroom. If you like to twiddle the knobs its Christmas everyday!  Plus really fun to only run the bass amps to tune the room etc etc. 
The new PS Audio AN3 is a bi-amped system and sounds amazing to me. Arnie Nudell's large systems were bi-amped as well.  Does anyone remember the M&K sub-woofer satellite system way back in the day? BTW, the ARC room at RMAF was a true bi-amped system using three
ARC amps, two mono blocks and a stereo amp powering Sonus Fabers.
All analog system, no digital in the room.  To the OP I say "jump in the water is fine". 
 

The Bryston room at RMAF was bi-amped active external crossover as
well. System sounded great.


I had forgotten about the Levinson HQD system: Hartley, Quad, Dahlquist.  Amazing system, you have to have the dedicated space for it though, it was rather large to say the least.