Originally Posted by coderguy
It is very fair, if you get a perfectly working DLP unit and a perfectly working LCD unit, the chances are higher the LCD will fail over time IF both units are equal in all other reliability factors. I did say I would NOT buy a projector based on reliability, they are all reliable enough if you get a good enough sample, and there is no real way to know which one is more reliable. However, if we take the knowns vs. the knowns, instead of the unknowns vs. the knowns, then we know this:
Hence, let's say someone built as perfect an LCD as possible and as perfect a DLP as possible, it is absolutely fact that the DLP has fewer things that can go wrong because there are SIMPLY FEWER PARTS. I don't know where you get your info from or why you think you know this, but this is standard industry knowledge. They use high-end HD motors now in the color wheels, the color wheel failure rates are less than 1/4th of what they used to be. IT can still happen, but it is VERY rare. LCD still has dust blob problems and heat degradation over heavy usage, if you overheat a DLP projector, it is much less likely to take damage.
Build quality is a misnomer, all build quality is relates to cooling, lamp, and power, and some will say how well the features work (ok,but in this case we are talking reliability only). We cannot say which projector is more reliable over given model just by looking at forums mainly because power and lamp issues are hard to equate, but if all other things are equal, DLP has a tendency to last longer.
What's "fair"? Comparing "perfectly working" lcd and dlp pj's and saying lcd will likely fail before the dlp?
And then going on to say "there is no real way to know which one is more reliable". Sheesh, let me know when you make your mind up.
Fewer things that CAN go wrong vs total incidents are two completely different items. Variability does not necessarily correlate to higher rate. A carburetor has a significantly larger number of moving parts (that can fail) than a fuel injection system, yet some designs have proven to be more reliable that some fuel injection arrays. What ifs can be- and often are- pointless.
Dust blobs? I'd love to know the x/100 ratio for LCD owners after 3-5 years.
Heat degradation? I could be terribly under or ill-informed, but my understanding was that the latest wave of inorganic panels were tremendously resilient against such?
"Build quality is a misnomer." Excuse me? Some people enjoy HDMI ports that retain a connection...comes in handy when you want to project an image. Ditto for other image and sound related items. Don't think you'll find ANYONE else who thinks build quality is simply encompassed by "cooling, lamp, and power".
No one (certainly not I, anyway) ever said we could use avs forums to determine definitive reliability rates amongst projectors...that of course is ridiculous, and really, stupid. That doesn't mean though, again, that there's not much to be gained by reading them (unbiasedly) retaining what you've learned, processing it, and using it to make a more informed decision.
You don't know where I get my info from? Fine (even though in the aforementioned example I made it clear that I was using the "official avs" thread for either pj). From which does yours emanate? "Standard industry knowledge"? Great, such standardized knowledge is easily verified, then. I'd love to see the valid statistical data supporting the claim...the world wide web makes such things fantastically navigable and painless.
I look forward to perusing it and discovering the err of my ways.