Before we jump all over Leckian here for stating his opinion...lets not kid ourselves about LCDs... they do have problems. I own a Panasonic L300u (AE300) and while I love it to death there are some things I'd like to fix.
Contrast Ratio -- My black levels and shadow detail are ok but I would love better. All reports of the HS51 lead to this aspect being vastly improved. GREAT
Screen Door -- Its easy to say "just defocus" but, realistically, the technology lags both DLP and LCOS in fill factor. Some are more susceptible than others (just like rainbows) but we don't need to pretend it isn't an issue. For the record, I can see screendoor even on 720p DLPs at 1.5x.
Vertical Banding -- The Epson panels definitely have it, I can prove it with my PJ. Luckily this doesn't bother me too much... but I do notice it from time to time. How the Sony fairs.... it hasn't really been reported yet but it looks positive.
Fixed Pattern Noise -- I got that too
Also an inherent problem of LCD. VB and FPN can be adjusted on LCOS via software like Dillard so it is correctable. Jury is still out on the Sony, hopefully their Image Director 2 software has adjustments for these issues...
Color Uniformity/Panel Degradation -- Everyone blasted the TI report as being biased which stating DLPs last longer than LCDs, imagine that.... but you know what, they were right in my case. I've only owned my PJ 1.5 years now. It started out great (confirmed through testing with a white field on Avia) but about 6 months ago I've developed a yellow patch in the upper right and a really obvious red patch covering my whole lower left. Believe me IT SUCKS. Granted, most people don't really notice it but I see it every time I watch a movie. Every time! This one pissed me off bad and almost had me saying goodbye to LCD forever.
Anyway, I'm still an LCD owner and I wouldn't object to another one if they can make some serious in roads to some of the problems above. The fact of the matter is every technology has issues, they just might not be "your" issues. Just because someone prefers DLP images to LCD doesn't mean they are a FANBOY as Stereodude so eloquently put it. They might just find the above problems too objectionable to seriously consider them. How many LCD fanboys scream RAINBOW at any given opportunity
P.S. I'm a technology slut. I'll use anything that'll give me a great image at a good price (or maybe I'm a cheap slut then!).