For better or worse we settled on 55" Samsung S90C. $2394, down from ~ $3400 with an original price of ~ $5100. Apparently the QD-OLED screen gives a better picture than the LG C3 plus the Samsung was about $300 cheaper.
Will see how bad the Tizen OS is, seems that is an issue for some.
Asked whether there were issues with cleaning the screen since there had been comments on here about issues cleaning Samsung screens. Was assured there wasn't any issues, perhaps that is confined to earlier screen models.