I agree Duncan, you have only so much space in your home and some screens are exhaustingly big now (particularly if they happen to be LCD). I bought the first Pioneer 42" Plasma nearly 6 years ago (I did showcase the B&O but it did not do it for me sorry) when I first moved to Singapore; it still IMHO has a picture quality that is hard to beat.
LCD has never done it for me. I work with Sharp as one of our strategic partners and several years ago they showed me an entire wall of a showroom which was a single planel LCD. So yes you can get huge screens but picture quality and viewing enjoyment is what matters.
Samsung has now released their OLED screens in this part of the world - you can get their 40" screen for under 4KSGD and they toss in a 27" (I think that is the size) LCD (which IMHO is all that LCD is good for - free gifts). And it is around 1" thick in total, and uses SIGNIFICANTLY less power than LCD - so this really is a significant breakthrough and makes LCD so last century now.
The same cannot be said of OLED. Now this is looking pretty good and starts to rival Plasma for reproductive quality.
One comment re HDTV. I recently was in Australia where they are digital broadcasting and I was watching on HDTV - what was pretty apparent was that unless the studios and directors start to change the lighting and filming techniques on the models on your favourite TV show, these "beauties" suddenly start to look a bit ordinary - skin blemishes, open pores and all!
Regards Simon