SOTA vs VPI (or stick with my Rega?)


I currently have a Rega Planar 3 (2016) with a Dynavector 10x5 that suits me and my record collection (mostly reggae, afrobeat, and jazz) but have been thinking about a turntable upgrade as my vinyl collection continues to expand.

Initially, I considered just a simple Groovetracer subplatter and upgraded counterweight, but am not sure if that is worthwhile. So now I've expanded the search to include a used SOTA Sapphire V or used VPI Prime/VPI Classic. I like the Rega's "PRAT" and no-nonsense design, but would be interested in getting more detail and cleaner, deeper bass out of my vinyl.

Any suggestions/advice/thoughts and alternatives welcome. THANKS!
For reference, my system consists of a Hegel H-160, Vandersteen Treos (non CT), Rega Planar 3, LFD Phonostage LE, and Dynavector 10x5. 
gritter2
@mulveling thanks for your in-depth response. It is very helpful and much appreciated. All that you mention about the SOTA is what I am looking for in a TT. I am not interested in analytical listening, and do not shy away from the warmth of vinyl as my SS amp is incredibly neutral and they seem to balance each other out nicely. 

@viridian thanks for your feedback as well. I am interested, what about the SOTA Sapphire do you like, personally? I think it’s telling that you still own one.
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@viridian The Rega has better PRAT than the VPI? I hadn’t heard that before. Very interesting.

Can you elaborate more? (Not hating, I am in the market and listen to punk and faster music so PRAT is important to me).
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I started out with an AR in the early 80’s than replaced it with a SOTA Star Saphire, a dealer’s démo then. I was so impressed that I traded it in for a Nova a few years later. Both were used with an SME V tonearm. I traded the Nova for a new Cosmos IV in 2008 which now sports a Graham Phatom II. I would never buy a TT without vacuum hold down and Sota does it right at an affordable price (so to speak). For the price they can’t be beat. 
Customer service is also top notch although I miss those animated conversations I have had with Kirk in years past. RIP my friend.
This is a good US based TT company along with VPI.