I'm also wondering about the 149 series.
At the moment, I have an old Sony XBR2 model, and am looking to upgrade. I was debating between the Samsung 950, Sony XBR8, and the Mitsubishi 149.
I realize overall that the 149 is by far worse in terms of picture quality than the other two, and that the 149 doesn't have as good sound as a true surround system, but being $1000 less than the 950 and $3000 less than the XBR8 (when you throw in tax), plus not being an audiophile, if the audio's just good enough, it can save me another $1000+ on audio equipment, the overall price to quality could work for me. I guess I'm just happy with my XBR2's picture quality, and am wondering if it's at least as good as that.
I want to at the very least upgrade the TV in every category, and not have to take a step back in terms of picture quality. I can live with not having the absolute very best atm.
I guess the things I'm worried about are picture quality, blurring, and input lag. I know a couple people with the Samsung 750, and having a PS2 or Wii makes the games just unplayable due to input lag. There literally was a 3 second difference between their TV and my XBR2 on games. Does the 149 play nice with upscaling?