Having A Tough Time Justifying More Than One Table

As you describe, multiple arms on your best table is the choice I would make. Wanting/needing a dust cover is a primary limiting factor for me, you didn’t mention that.

I don’t have the space for more than 1 large TT, I keep a spare TT in storage downstairs, so that I will never be without a TT if the main one is down for ......., you don’t have to part with all the others permanently. Removable headshell on the spare TT’s arm makes it easier to get back in action.
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for other’s following, considering more than 1 (arm/tt), a few comments:

Once I got my JVC TT with 2 arms there’s no going back.1 arm with mono cartridge ready to go, 1 stereo ready to go, effortlessly switch back and forth during a listening session. A treat for Jazz, Big Bands ... a lot of great recordings were made before LP’s went stereo in 1958.

For versatility this 3 arm TT appealed to me, it’s attached dust cover, it’s innovative rotating arm boards, it’s compactness. It turned out to be too compact to fit my 12.5" long arm. Those 70mm 7 layer plinths are terrific.

https://www.ebay.com/itm/Transcription-turntable-Denon-DP-3000-tonearms-Grace-960-Grace-565-Denon-DA...

I might have changed the spinner as others mentioned, get quartz locked, people say the DP80 a great choice.

Change/compare arms/cartridges for the rest of your life. Note: the clearances inside the dust cover when closed restrict which arms will fit, i.e. my 12.5" Blackbird will NOT fit. With the dust cover removed, almost any arm would fit. Note: only one of the 3 existing arms has anti-skate.

Dust Cover is a must for me. That attached, stay at any vertical position dust cover would be a great feature (3 hinges I noticed). My 2 arm deck’s removable cover is big, heavy, I have to carefully lift off, put somewhere without damage, carefully put back in place. Every movement is potential for disaster, and scuff marks will accumulate even with caution.

The innovative rotatable circular arm boards allow repositioning for any arm length without drilling new holes, sliding mounts ...(restricted by what arm fits inside the cover). However, the diameter of an arm’s base plate might make the base plate project a bit past the edge of the circle’s edge, just a visual consideration.
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I am keeping my eye out for a rare JVC-Victor 3 arm plinth CL-P3, if anybody sees one, let me know please.

I just realized, my office TT can also be a spare for the main system if needed for a short time.

You can get a dust cover with locking hinges on any top SOTA.

neonknight, you could just switch to decaf. OR ...  why not sell the two others and combine the funds for a second TT? 

@isochronism 

I have considered this too, and have gone back and forth. 

Now the Well Tempered Reference is an odd duck of a table, and sounds very nice but is of limited appeal to the current vinyl market. I watched one languish on Audiogon for months with an asking price of $3K for arm and table from an original owner. Zero interest, and perhaps that is due to its 90's era cosmetics. 

However, that arm is excellent if you are able to pair it with medium or higher compliance cartridges. It originally came with an Ikeda 9 on it, and that combo was problematic at best. I recently installed my ZYX 4D onto it and it sounds very nice and tracks extremely well. It could be that second table if I want, as I suspect the arm is as good or better than the one on my Brinkmann Bardo, which would be a far easier table to sell. 

However, the Well Tempered would never accept another arm, and the Brinkmann would. So at that point I would be locked into two tables that I would not want to pull cartridges off and on with any regularity. As I think about it, I wonder how many times I would want to exchange arm boards on the SOTA, and how good is it for its overall health. Perhaps every few years as I would remove cartridges for maintenance. 

Right now this is a thinking through the process and what my alternatives are. I sure clean my system up if I can get down to two tables, as my Esoteric phono stage accepts two inputs, so I could remove the Graham Slee Accession and Elevator combo that supports the third table. 

As I sit right now I think moving the Brinkmann on makes the most sense, but its such a darn nice direct drive table. Although when push comes to shove, the SOTA is better in every respect, so it becomes expendable.