Should I keep the Turntable or sell it?


I’ve been back and forth on this decision for about a month, and the more I learn, the harder this decision gets.

Backstory: I won the brand new Cambridge Audio Alva TT turntable in an online contest in mid-May, and while it sounds great, I decided to list it for sale a couple weeks ago. I’ve always wanted to try out a Rega P6 or P3 with a really nice cart, because I feel like I’m not getting enough out of my Pro-Ject Debut Carbon. Prior to winning the Alva TT, I switched the Red Ortofon out for the Blue, and there was a great improvement in sound quality. But after comparing the Pro-Ject to the Alva TT and hearing what a $1700 turntable can sound like, I definitely am interested in exploring more high fidelity turntables. The issue is that I feel like I prefer the sound of tubes over solid state, and the Alva TT uses an integrated Alva Duo phono preamp for the RCA out, and their own DAC for the Bluetooth out if I want to go that route. I don’t have a ton of experience with tubes, and maybe it’s just the “cool factor” I actually like and I’m just having a placebo effect.

So I decided to list it for sale to try and get a Rega, because I heard so many great things about them. But over the last week or so, I’ve learned more about the Alva TT and how it uses Rega’s famous tonearm. I looked up the cart and it is listed at $500 separately, which is probably why it sounds better than the Pro-Ject w/ Ortofon Blue. I’ve also read on these boards about direct drive being better than belt, which the Alva has as well. It also has the added bonus of Bluetooth that go directly to my KEF LS50 Wireless, but I would most likely just use interconnects.

So I would love to get some advice from you all. I’ve gone back and forth about keeping the Alva or selling it, along with my Pro-Ject Debut Carbon, and buying/trading for something like a Rega P3 or P6. If you had my first world problem, what would you do?
bignamehere
And I will add that my turntable is a JVC VL8 from the early 70s. It was top of the line then, and sounds fantastic now. Far better than the $1k ProJect RM5SE that I had before. And it’s a belt drive.  I have an AT ART9 on it and I will put this system up against anything.  Even the venerable Technics DD. 
Bluetooth, usb, phono preamp and perhaps switching power supply all inside a turntable is not pleasant for the interferences that arise at high frequencies and for the weak signals that a cartridge emits ... all is junk, these products are not products for vinyl lovers; it would be like going to the nightclub with mom.  :(
@yogiboy another member posted about the SOTA... they look beautiful, and I’m sure with the Ortofon Blue it would sound really good. Upgrade to a Bronze or Black, and I’m sure it would sound as amazing as it looks. It’s just about $500-$1000 out of my current budget. 

Fun question for you... if you had to pick one thing on a turntable that is the most important, would you say it was the cart? Assuming you aren’t trying to put a twin turbo on a Toyota Tercel, would a mid-level table like a Music Hall 5.3 do well with an Ortofon Black for example?

@best-groove what budget would you say is the minimum for a table/cart to not be “clubbin with Mamma” in your opinion?
I would consider the Marantz TT 15S1 or a ClearAudio Concept.  Both are in the price range (if you find a used one), and very good performers. Also, have you tried to trade in the TT?  A place like Needle Doctor may take it in trade, since it's new in the box, and give you a good trade value.