Upgrade Opinions, Thorens vs VPI


I'm looking to possibly upgrade to a better turntable.

My current setup is a Thorens TD166 MKII with the original tp11 tonearm. The table has a few mods including a solid cherry plinth and birch bottom with sorbothane feet. It also came with the 10mm spindle bearing, same one used on the TD160.

Amp: Rogue audio Sphinx 
Preamp: MM preamp built into the Sphinx
Cartidge: Shure M97xe with SAS stylus
Speakers: Monitor Audio Silver 8

The components listed above are my recent upgrades. I now think my table is due for an upgrade. 

I am considering installing a Jelco SA750D tonearm on my Thorens, since the tonearm is likely the weakest performing part of the table, or going with a completely new table.

I am considering the following tables:

Rega Planar 3 (possibly not a big leap?)

Rega RP8

VPI Classic 1 

Acoustic Signature Wow XL with Rega arm.

I am leaning toward the VPI, partly because I really like its look, but I do want the best sounding table under $3000 (subjective I know). Overall, I'm pleased with the current sound from my Thorens, so maybe the best bang for my buck would be a new tonearm. Some members have claimed that a Debut Carbon will blow the doors of a TD166, but in my personal experience, it's the opposite. So I'm thinking I'd probably need to spend over 1K for a real sonic upgrade over my Thorens.

Anyone have experience with VPI tables versus Thorens TD16X series? Any advice is welcome.
helomech
The phoenix stuff is great.  The feedback from the rpm guage makes this a plug and play system.  Once you decide on what voltage you want your motor to see it is automatic from there.  

I found another nice thing about having a rpm readout with .001 resolution if your belt string what ever is not tight enough you can see the numbers change more than usual.

Enjoy the ride
Tom
I don't get it. The first job of a turntable is to spin the LP at accurate speed and then to hold speed despite any effects of stylus drag, etc. What I don't get is how any turntable that fails noticeably (a big qualifier) in these tasks is acceptable, at these price points. Anyway, that's what you're looking for in a turntable.
I run my Thorens with a music hall cruise control. It seems to run at the correct speed (checked by strobe disc) when the controller reads 33.5 rpm.

 I agree that any table in that price range should hold perfect speed without an outboard controller.

There's almost too many options in turntables these days. Unfortunately I don't have a means of auditioning them locally. 
All thorens require 33.5 to run at the correct speed using the cruise control. 

BTW, upgrading the arm on your 166 will make a substantial improvement in its sound. The Jelco is an excellent choice. I went that path and completed modded out a 166. The 166 matched the level of performance of my WTRP, which I then sold.

Since then I have modded a TD 850 and a TD 150. Both completely pushed to the max. I can easily say that both would give any table a run for their money.

That being said.......if I wasn't  into modding things and creating jems of my own liking I would go with The VPI Classic.  I've played with a Rega 3, and while it has potential it is not realized in its stock form.
The Classic is, on the other hand, a nearly complete product that really only needs speed stabilization to get you to the end. 

Also, since a smart shopper can pick one up used at a very good price, it is a no-brain move.

I can't see how you would be disappointed with the Classic. But, as advised elsewhere, buy the best phono-stage and cartridge you can afford. Spend first on the phono-stage since there are a lot of great affordable options in cartridges.