Just my thoughts, keep your favorite turntable, tonearm, and phono. Swap out cartridges at your leisure. Both your turntables are very nice. It would be a difficult choice for me, but I think the SOTA is a keeper.
Best of luck with your decision!
None of tyhat is necessary. Rational people will buy a nice table radio and just listen. If they want a real experience, they will go to live music. The rest of us are crazy. Where to stop? Well, do you hear a defect you want to correct, or just have that "next box will be magically better" bug that supports the audiophile hobby? If so, you never stop.
I am way too poor, or cheap, so I only am targeting specific issues that get in the way of the music. I am stuck with the room as it is a living room, not a listening room. I did just re-built my speakers changing from SEAS to SB tweeters and a very different crossover. Fixed the top in "air" and maybe a little of the vocal sibilance. Looking as the big bucks ( for me) maybe a Denafritz or Cord DAC. My DSP box for my sub should get here this week. Specific changes for specific problems. Sure, as an audiofool at heart, I would love a Boulder or Roland amp, Dave DAC, top of the line Sonas Fabers... Only if I won the lottery.
I only know tables from " back in the day" but have highest regard for SOTA. Easy to set up. Just plain worked. I do not know your DAC, but I have concluded a lot of the issues I hear are actually DAC related. Some I fixed in JRiver configuration, but others are intrinsic to how DACs work. Might I suggest looking into a Chord?
I have 3 systems (no television, except the band, in this house), all vintage (how I say USED or OLD). One system is strictly mono (single driver!) in my "library" the other system in that room is TT -stereo, DAC for Spotify- my "talent booking agent", and CD. My main system is in the "Living room" CD, Cassette (I have sound board pirate tapes, and other live) The SAE 2100L pre-amp lets me switch between 2 TT's, so one is dedicated stereo, one mono, independent gain (and I do run phono pre for my MC. Like I said, everything I have is old. I think about spending on new(er) but don't want to cut back on my media buying, (or shelf construction) which will only get worse if I take the Dokoder out of moth balls... and I am trying to retire. Having said all that, when my sound gets "stale" or I simply have a wild hair, I experiment with headphones for awhile, speaker placement, listening location, and wall treatments (fabric over foam so far) and I have noticed the bookshelf effect, or a different pressing?. A recent re-cap did wonders for a couple units in the main, too. I also try to be diligent with servicing. Sometimes I use a Test record, or a pink noise generator and mic, sometimes I throw a bean bag over my shoulder ;). I also have enough stuff to swap out components on a whim. A re-direct usually lasts a couple of months, although the last shuffle in the library has been fortunately and surprisingly brilliant. Sorry I have no contemporary suggestions on what you should buy next.