Just a thought, but I know plenty of people who continue to wait for "next year's new and improved" models..... and they've been waiting like that for years now.
I see the same thing over on DPR, a camera forum I frequent. There are folks there who keep waiting for the perfect small, inexpensive, high quality digital camera to be released, while the rest of us happily enjoy our imperfect but wonderfully useful cameras day in and day out.
I understand your concern over the issues that have been raised with this year's crop of TVs. I had those same concerns and almost didn't buy a new TV exactly because of the purported rising black levels and "floating blacks". However, I finally decided to take the plunge, figuring I could always return the set if I found I really couldn't live with these issues.
Maybe it's because this is my first big screen TV, but I've been completely happy with my 46" G25. The picture is stunning and I've never seen any sign of floating blacks..... and believe me I've looked and looked and looked. Not to say I don't think other folks see them, I'm just saying I can't see them, so I've come to the conclusion that it's something that some folks are much more sensitive to than others, and I'm fortunate to be one of those that isn't bothered by it.
In any case, after 2 months I'm still giddy every time I turn it on and actually find it hard to turn off at night because I'm so amazed at the beauty of the images it brings into my room.
So, yes...... you can wait for the 2011 models to come out. And then you can wait for the reviews. And of course no matter how good the TVs are, the thing we do best of these forums is to discover what ever imperfections there might be and then debate endlessly about their impact on real world viewing, at which point it will be about July of 2011 and you will begin to wonder if maybe it's worth waiting for the 2012 models, because surely they will be much better.
Just a thought