I have the VT30 and love it. Still waiting to get a calibration. TBH, the biggest issue is that my room doesn't have window coverings because I mostly watch this set at night. I don't think calibrators want to start work at 10 PM...

I chose the VT over the GT because I wanted the Black Pro 2. Is it necessarily better vs the GT? I probably wouldn't be able to tell.

I have yet to watch a 3D movie, though I did buy an extra set of 3rd party glasses. 3D makes me dizzy and I still prefer 2D done well.