Yet another turntable recommendation question


Hello all,
Longtime reader of the forums, but I rarely post. As a relative noob, I have learned much from reading your conversations, so thank you.
I am currently looking to upgrade my turntable situation from my old plastic Technics and Onkyo hand-me-downs.
Budget would be stretched at $600-ish.
Features I like...
- removable headshell, or at least a way to easily change carts and related tonearm adjustments
- speed stability!! (as a musician, pitch instability drives me absolutely insane)- some prospect of upgrading over time (tonearm, platter, sub-platter, wiring, etc.)
- belt drive- good (dare I say great?) sound quality- Auto shut off would be very nice

I don't want bells and whistles like built-in phono stage and USB nonsense. Simple is good.

I have considered buying used (Thorens, Dual) and haven't necessarily ruled it out, but I don't want a project, and I darn sure don't want to inherit someone else's problems. Warranties are kind of awesome.
The rest of my system is...
Schitt Mani, Jolida JD1501BRC, Wharfedale Diamond 10.7, Audioquest, BlueJeans, and Morrow cabling.
Mid-fi, I suppose, but I think it sounds great for the price, and I have no immediate plans to change any of that.
I listen to everything from classical to hard rock to jazz to ambient drone.
So far I have looked at Music Hall, Fluance, Denon, Rega, Pro-Ject, but all are compromised in some way.
Are there any others I should be factoring in to the equation?Or any I should steer clear of?
Thanks for any advice and cheers!

earworm22
I agree with roberjerman on the Pioneer PLX-1000.  I've had mine for over 2 years now and is currently what I consider my best sounding turntable.  I also have two Rega turntables and a near mint, never gigged Technics SL-1200.  My Rega P-3 should be the best sounding, but it's not.  The removable head shell, with pre-mounted cartridges on spare headshells makes changing cartridges a breeze on the Pioneer and Technics.  For fear of damaging the cartridge or the delicate cartridge cables on the Rega, I'm usually sweating bullets when I'm finished.  The PLX-1000 is my quietest deck due to the extra insulation in the base and inside the tone arm.  It's one of the better made Hanpin clones of the SL-1000 Technics.  I paid $699 for mine, but they're currently down to $599 on Amazon.  If you can swing a few $$$ for a cartridge, I recommend the Hana SL Shibata tipped cartridge.  It sounds as good as it gets to me, so much so that I have two of them!  Happy gear searching!     
For an extra 100 or so, try Audio Techica ATLP7, a fully manual belt drive at an excellent price point.
Pioneer, as others mentioned, is really good for the money.

However, if by any chance you find some extra money in last year's coat pocket, Technics SL-1500 C. It checks almost all the boxes (it is direct drive, like Pioneer) including auto-lift at the end of the record. Do not worry about included preamplifier, you can switch it off.
I'll second a recommendation already posted: buy used. You may be able to get a really nice turntable that can be subsequently upgraded with a better tonearm and cartridge, if needed. VPI is a good bet, especially for older models like the HW-19 for which parts and various enhancements remain readily available.