Good morning Joe,
You just mentioned some important facts regarding the availability here in the USA/North America (right now: nil), and no Dolby Vision support from Panasonic.
The final ratings by few expert videophiles was very tight @ the end. The Panasonic and LG and Sony OLED UHDTVs (the models from the competition) are all excellent, and within very close range from each other.
* Dolby Vision is not quite there yet; work in progress...
What is hallucinating, IMO, is the progress accomplished in the OLED technology. It is simply the best. The future looks bright.