Originally Posted by KtrainHurricane
This post may sound odd (an unwanted) in this thread, but I very recently acquired a strong desire to own one of the Mitsubishi 738 series DLP sets...the WD-73738 to be exact.
I used to be a fan of RPTVs as the best bang for the buck, and that may still be the case, but nowadays I think it's harder to make a case for RPTV unless you are looking at the 80-90 inch range and don't want to deal with a projector. I had a WD-73640 for about a month. It wasn't a bad TV for the money, but it did have some geometry and uniformity issues that bugged me, in part because the build quality of the screen/enclosure very was poor. I don't think the 7xx series is much better. The 8xx series does have better build quality.
I sold the 73640 and bought a 60ST30. (I came out about even on cost.) Picture quality and build quality are definitely superior on the plasma. The DLP was bigger and brighter and consumed less power, but personally I'm still happier with the plasma. I don't really miss the size difference. Quality vs quantity.
I was also able to find furniture that fit the 60" TV much easier than the 73", so keep that in mind if you care about what your TV sits on/in.
No TV technology is perfect, so pick your poison and just enjoy it. Since you already have an ST30, I'd suggest keeping for now and waiting to see what comes available in larger screen sizes over the next few years. Or you might be able to find an end-of-year deal on the 60ST30 which would give you another 10 inches and shouldn't cost you too much to upgrade. Costco recently had some limited stock of ST30's at a good price.