Yeah, there is no such thing as too big of a TV. We normally sit 14 ft away from a 61" set and while it looks big at first, after a month you get used to it. My wife said we could have gone with the 70" TV. When somebody is sitting on our other couch they end up being about 10 ft away and it helps having a 1080 display.

But, considering your primary viewing will be 10 ft away, I wouldn't go with a 768P set at that distance.