I gotta say that a few years back when I bought my 51" HD720p CRT RPTV, I was ecstatic over the size and picture quality. Matter of fact I still am. But still something just didnt seem right. It didnt feel like a true theatre experiance. That all changed 1.5 years ago when the prices of 720p projectors dropped. I quickly did some overtime and researched everything I could. I decided to order the Sanyo Z5 for $1100 and managed to get a 100" screen from BB for $120 ( they had several sitting in the back for over a year collecting dust. I think It was regularly $280.) That weekend I set everything up and my jaw hit the floor. Now THIS felt like a REAL HT !!!!
It seems these days that everyone and their dog has a minimum 42" HDTV and a cheap HTIB setup in their living room. But when people come to my house for movie night it FEELS like a real movie night.
I only have 750hrs on my bulb right now and try to clean the filters every 100 hours or so to extend that bulb life. Every time I'm tempted to buy a new Plasma to replace my RPTV I think of my real joy in the ManCave and how much more joy I get out of watching her. My next upgrade instead of buying a 51 plasma will be to buy a 1080p projector, and a couple spare bulbs.
Currently I have upgraded from 5.1 to 7.1 and am looking to upgrade my speakers to a higher end. That way my older system can be brought up to the living room and the higher end stuff will remain in the HT room.