How important is the tonearm?

Davide,
We are all free to believe what we want.......even that the earth is flat or the sun revolves around the earth.
But please don't state that a suspended turntable is better than a non-suspended one as a fact.
To you it might seem true, yet that still positions it far from a 'fact'?

High school physics hardly qualifies you to teach.

To me, with a bit of university physics, a suspended turntable, no matter what frequency the suspension is tuned to, is a 'moving' turntable.
Once the turntable is 'moving', even if the arm is moving on the same suspended platform, all bets are off.
The geometrical relationships of the stylus to the vinyl groove are forever changing and the platter is almost never horizontal.

You appear to be stuck in an 80s timewarp with a 'Linn' induced mentality?
Thankfully analogue has moved on from this mind-bending 'sect' and a superficial search of all the high-end turntable introductions over the last 10 years would leave no doubt in your mind as to the view of the majority of current turntable designers.

But if you enjoy it........please continue to do so.

A great tonearm and good cartridge will outperform a good tonearm and great cartridge all day long.

I can prove that to any or all visitors.

Dealer disclaimer.

Yes, it is all important. The table, the arm, the cart, the wiring, etc. However, the OPs question was not "what is more important". He simply asked "how important is the tonearm". If they asked "How important is the table?" My answer would be the same. Very important. No component can correct the faults of another, but faults can be masked by another component.

However, the OPs question was not "what is more important". He simply asked "how important is the tonearm"

You aren't a real Audiophile. Sorry, but your logical following of "read-think-answering" is opposite to forums advices.

the basic yardstick for successful purchase is listening fatigue. In order of importance

1) turntable
2) tonearm
3) cartridge

however cartridges like speakers illicit love/hate/ho-hum responses. And unlike tonearms stylii can be destroyed in a blink of an eye. So find a cartridge manufacturer whose sound you love and settle on the model that won't cause divorce if your spouse dusts the stylus; invest any difference in your tonearm. (which may still cause divorce if your increased blissful listening hours makes your spouse feel like an "audiophile widow" :<)