Sell Me Your Women, Your Children, Your Vintage Turntable...

@terry9 , I'm afraid that is faulty thinking. True you do not have to worry about foot fall problems. But, you do have to worry about everything else.
Don't believe me? Keep your turntable off and place the stylus down on a record, turn up the volume and go have a look at your woofers. They are fluttering. With a Sota they will be dead still. It is called environmental rumble. At worst you might feed back, again a Sota will not do this. 
Vibration travels through everything and a turntable is a very sensitive vibration measuring device. It does not care where the vibration comes from. Traveling through the air it will sound will even vibrate your tonearm creating an echo that people seem to like. It screws up the imaging. A proper dust cover will cut this at least 10 dB like hearing protectors for your cartridge. Mike Fremer solves the problem by putting his turntable in another room. Mark Dohmann is busy designing an isolation dust cover for the Helix along with vacuum clamping. Fremer also uses a MinusK platform under his table even though it is in another room. He is convinced it sounds better. Watch this https://www.youtube.com/watch?v=1rgK0YMsJXM 

Interesting assertion. Let's deconstruct.

First, can't do the test you recommend because I have ESL's, but I am confident that it would disconfirm your assertion.
Second, environmental rumble is obviously a function of environment. The most usual source is traffic. I specified, "far from a freeway." Perhaps I should have added "railway" and "volcano", but thought that "freeway" would stand for all.
Third, vibration does NOT travel through everything. Proof: since your Sota TT is a thing, and you say that vibration doesn't pass through it, vibration does not pass through everything.
Obviously it is a matter of degree. Here a high mass TT is useful, while a suspension with its own resonating frequency may be a liability.
Fourth, it would seem that ambient sound would only vibrate the tonearm if the frequency were right, the shape were right, the effective mass were low, and the volume were high.
That's an argument for a high mass tonearm and cartridge, rather than a suspension with its own resonating frequency.

Or so it seems to me.

MC, how do you come up with all these YouTubes?

They have this little box, it's like a search or something. 
😂🤣😉
I know, not what you meant. Encyclopedic memory? 😏

@petey15 ....maglev feet, *mmm* I'd think the fields would effect the cart in some obscure way.. ;)

Sorbothane, thick as one can afford, feet.

I must say that considering a vintage TT has been a fun distraction.

There are some gorgeous looking restored decks out there and the custom plinths in some cases are works of art.

The Technics SP-10R looks like a real beaut, here's a video of OMA who make a nice cast iron plinth - https://youtu.be/AazHsWk-8C0

I thought this was a great video too, from OMA. Some interesting turntable history and views on direct drive versus belt and idler: https://youtu.be/UEcQd1SZ8S4

So, what to do?...hmmmm