No, 8 tracks compared to CDs are garbage.
But, plasmas compared to every LCD display to date is a better technology. They have great contrast, great off-axis viewing, they basically have all the benefits that OLED has except for a few differences.
Plasma will have better motion handling at this time still. It's a faster technology.
OLED will be brighter - period. OLED is not as bright as what LCDs can deliver, but certainly better than the Kuro displays.
OLED will have better than LCD image uniformity, but worse than plasma. It's the way LEDs work, but it won't be significant enough to matter.
The Kuro displays also are reported to have better shadow detail, but this is likely to change with future models.
OLED will deliver on HDR, which Kuro plasmas won't ever be able to deliver on. That will matter a good bit.
So, you are basically saying that your brand new sports car is going to beat down a Shelby Cobra because your sports car is well reviewed and brand new. That's not how it works. You put them on the track, you compare stats, then you put them head-to-head. In some areas the new car wins, but, the Shelby still can hold it's own, and may actually win when all things are considered.
Pioneer Kuros are the gold standard in many areas.
LG's OLED displays are the current gold standard, but they don't best the Kuro in all areas, which means someone looking for a BETTER display than their Kuro need to know that OLED may not be the way to go quite yet.