I was a fairly early adopter of the 7 series and my 65B7 cost me £3,300. I would have loved a 77 then but the cost was just too high. This time around I waited and then bought a 77C8 (last years model) when prices had dropped to a more reasonable £3,600 including a five year warranty. Yes , the 77C9 is probably a marginally better TV but that currently sits at £7,000.
It will be interesting to see what the cheaper TVs will retail at when production gets really going.