Is this any surprise? Probably not, they make good quality, very good looking TV's, and they always sit very prominently in showrooms, and look better than many of the others.
I'd argue that Pioneer, Panasonic and maybe even Sony make better sets, but they are not as good looking as the Samsung sets.
2010 will be an interesting to watch as there are 2 major advancements in TV technology on the way, first and probably more important is OLED which allows for ultra thin TV's with fantastic picture quality and low energy use. The other is 3D TV which is a matter of opinion, I personally don't see it catching on, but if this years CES show was anything to go by, it'll hit big this year.
I personally hope we get larger screens, my 42 inch is great but a nice 60 inch that I can easily mount onto the wall with a wireless connection built in that I can get full 1080p streaming video on would be nice.