Ya, there are many reliable sources who suggest anything more than 720p at 50" and lower is a waste. 1080p and higher is nice for use as computer monitors of course. Projectors are really the only devices used in homes that would benefit. Also worth pointing out is that there is essentially 1 source of 1080p content (blu-ray). No source for higher than 1080p yet.
I'm not saying we won't get there, but the benefits won't be as apparent and it'll be awhile before content catches up... There are already bandwidth issues for cable and satalite providers.