Interesting thread, I too would strongly lean to the Technics given the choice. I have owned two VPIs--a Scoutmaster (which I hated) and the original Classic (much less hate). I really didn't like the tonearm on either and recently got out of the VPI business and bought a Pure Fidelity Harmony--which is just leaps and bounds better than the VPIs to my ear.
The dealer I bought it from is also a VPI dealer and so I had him switch tables during the demo. After two songs on the Prime or Prime Signature, all I could think of was "sounds like a VPI". To me, they are all about "audiophile sounds" and less about connecting you with music. You want tone and a nice big soundstage, buy a VPI. You want an engaging listen, try something else. To me it's an "admire it" vs "be moved by it" type of thing.
As always, it comes down to a personal preference--I know there are tons of folks who LOVE their VPIs. Just figure out what camp you are in. I do think the Technics is a good enough base to support much higher aspirations. A couple of guys in my local audio group have added the added an Integrity Tru-Glider tonearm to the Technics and seem thrilled by the combo.