Every technology is eventually matched or even surpassed by another that is cheaper. That doesn't change the reality that at a particular point in time, one particular product line usually stands at least slightly (and sometimes a whole lot more) above the rest.
No manufacturer has owned the top stop for more than a few years, except for Sony in the later part of the 20th Century when they held exclusive rights to Trinitron and the Trinitron picture tube was as good as it got. Even then, though, some Sonys were much better than others. Since the HD era began, the best lines and manufacturers have changed every few years. Even the technology that was on top has changed. 6 or more years ago, it was still CRT and CRT-based RPTV, then Sony/JVC LCoS trading places, etc.
I can go out today and buy a sub-$1000 TV that will pretty much blow away what would have cost me $15000 a decade ago when it comes to larger screen TVs. The technology always marches on but at a point in time you can still only buy one best product. If you are willing to wait, then you get beat that product for less in a few years but also someone else will have raised the bar above anything around today and that will still probably be relatively expensive, whoever it comes from.
That doesn't change the consensus view that right now that best is the Pioneer Elite Kuro. Next year or the year after, who knows.